Skip to main content
0
Search products
Search
Mugs
Tees
Hoodies
Search products
Search
Chat
Share
Free Shipping
Menu
Mugs
Tees
Hoodies
Back to urbandictionary.com
Pro Customization
Create unique products with your own words and definitions
Preview
Personalize Your Design
Your Word
Your Definition
Something that occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
Text fits
Save
Cancel
🤖
Shopping Assistant
Online
Hey! 👋 I'm your shopping assistant. What are you looking for?
Ask about products
AI-generated responses. Verify claims.