1 definition by balls balls

Top Definition
when the penis becomes half erect. Not to the extent that it an erection, but it is larger than normal and almost there. This can be due to anything sexually stimulating, from talking about gay porn to not being able to get it up during sex.
Luska got a chubby in a room full of guys
by balls balls March 19, 2008

Mug icon
Buy a chubby mug!