Urban Dictionary: Definitions by peennibbaPPXD

Calvin

A real man, usually has a penis of 60 inches or more.

"Dude who is that dude with the massive shlong?"
"My nibba that's Calvin he has a 60 inch pecker"

A term for a nibba who jumps into a pit of sand for long jump or triple jump in track and field meets.

"bro this guys thighs are looking stupid thicc"
"yeah bruh he's a sandnibba he needs some extra leg girth

Term for the penises of residents of the Congo, which has the largest national average penis size of any country at a whopping 7.13 inches on average

"My nibba over here got a 8 inch shlong"
"yeah bro he's got a serious congan peen"