Definitions by CastielWinchester67

Magnum 

A person who buys condoms that are way too big for him.

Person 1: OMG Seth is such a magnum! Did you hear that he bought a box of XL condoms when he barely fits an XS.

Person 2: I know! My pinky is bigger!

Magnum by CastielWinchester67 December 30, 2015