Size It Up

To compare hand and finger sizes, leading to the comparing of other certain extremeties. This is a command given by one who is insecure about his manhood, and wants to reassure himself that he is as normal as anyone else.

when someone wants to fight you and to basically get on their level; usually said by someone bigger to someone smaller (in height)

The act of checking someone out to see if you can take them in a fight

to estimate or assess someone or something

The phrase "size up", usually used in arguments, essentially means to "stand up and fight"

The act of looking at someone and determining if you could take them in a fight.

To get a feel of someone's strength by observing them or a call out to get someone to fight you

This pretty simple term which was then redefined by tiktok idiots into: When a man looks if his dick will fit by checking out a girl's thighs.