Opal
Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Due to its amorphous property, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. The name opal is believed to be derived from the Sanskrit word upala (उपल), which means 'jewel', and later the Greek derivative opállios (ὀπάλλιος), which means 'to see a change in color'. There are two broad classes of opal: precious and common. Precious opal displays play-of-color (iridescence); common opal does not.5 Play-of-color is defined as "a pseudo chromatic optical effect resulting in flashes of colored light from certain minerals, as they are turned in white light."6 The internal structure of precious opal causes it to diffract light, resulting in play-of-color. Depending on the conditions in which it formed, opal may be transparent, translucent, or opaque, and the background color may be white, black, or nearly any color of the visual spectrum. Black opal is considered the rarest, while white, gray, and green opals are the most common.
The Urban Dictionary Mug
I fucked this mug so hard, It became pregnant

Exactly as I ordered it. Shipping was perfect, got updates, accurate date of delivery, and no damage. This is a gift for my little brother.
i was put on a list for buying this mug. 10/10 would recommend
Great customer service and was a fun surprise for an inside joke to a coworker. 😊
Nice cup! Seems to be a quality piece.
This mug reminds me of when I was happy. When I was a wee little winker enjoying the wonders of this life!
The, "Wenomechainsama" Mug has amazing quality and an amazing definition! Can't belive my child's generation is so funny! Love - Sharen, 55, On facebook !<3
this mug reminds me of my cat, it does nothing and cant pour me a nice cup of joe. It is horrible, it doesn't tell nor does it allow me sip on it. It stops me from drinking from it, its like the mug is trying to torture me.
love this mug! Goes perfect with the Morbius meal.

Had no idea my name had a definition!!
Bought for an inside joke. Perfect.
i love the schizophrenia mug its amazing
This cute mug reminded me of a quote from an obscure biography I found quite by accident in a tiny hole-in-the-wall 2nd hand shop in Portland, ME in 1987: 'The Life and Times of Lazarus of Bethany'. Quote: " We are all walking wounded held together by the scars of our forbearance and the charity of our sisters and brothers." Truer words have never been said.
Love it . Its me down to a T
unlike most mug customization, you can say whatever the fuck you want. Bravo!
i liked that the mug had my name on it and a funny definition, i will definitely buy some for my friends(with their names of course).
I bought it as sort of a gag gift for my son and his new girlfriend and they loved it
I haven't even bought it, it smells nice
nice quality, vivid image
What's funny is the saying that everyone searched for is the one that popped up on the cup. So all the weird gross sayings that people are commenting on are completely out of context to everyone seeing their comment.
Review Details
Pro Customization
Create unique products with your own words and definitions
Live Preview
Personalize Your Design
Debug: Product Metadata
| Key | Value (click to copy) |
|---|---|
Copied! | copiedKey = null, 1500);
"> |
Return Policy
Made Just For You
Each product is custom-printed with your unique text, making it truly one-of-a-kind.
Defect-Free Guarantee
If your product arrives with printing defects, damage, or quality issues, we'll send you a free replacement.
Custom Orders
Due to the personalized nature of your order, we don't accept returns for change of mind or sizing issues.
Questions about your order? Contact our support team for assistance.