That+guy's definitions

vanity strength

The appearance of having great strength, but really having the strength of a sick nine year school girl.

Person 1: Did you see how strong Tom got over the summer.
Person 2: Ugh. It’s vanity strength. He helped me move and couldn’t even pick up a box of clothes.

Person 1: Man what a bitch.

by That+guy November 4, 2017