What's on your mug?

means snog. (heavy kissing) with the use of tounges. snog

that boys proper hot. i wanna piece him!

By sexycakes123

to suck a guys dick

Hey Bitch Gimmie piece now!!

By Shelly

Third base. 'Getting piece' is used to describe the act of having someone finger you/give you a handjob.

"Yeah man I got piece last night" "I really need to get some piece"

By ElectricBaby

Serves as a suffix to any noun to refer to it as a part of a whole.

What's crackalackin, Dave-piece?

By Jon Sibley

-One half gram of cocaine/crack. Commonly sold for 15 to 30 dollars.

"Yo spaceghost, I'm fiendin' brotha!!! You got a twenty piece?"

By *Spaceghost*