Not just a general term for the male genitalia, but one that describes a penis with substantial length and girth.

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.

What you say when you see a dick so well hung, you condense the phrase "Shit that's long" to shlong.

a shlong is a long penis that appeals to everyone. a nice shlong is 13+ inches. It seduces anyone and everyone in a 5km radius. shlongs are very rare so when u see one, let it touch you. Caress it. Enjoy it while it lasts.

extremly large dick. one that slaps your thighs

Misspelling of the world "schlong," or penis. Probably derived from the German "schlange" for snake, which, pronounced in German, must have sounded like "schlong" to native English speakers.

The male genitillia that is large in both length and girth!