Basketball term usually used to gauge one defenders ability
“What’s he doing with the ball”
He’s sizing up seeing how he reacts
when a guy examines a girls thighs in order to see if she can take dick from him
have you seen her? i think i need to size up. not sure if she can take me. we are sizing up
when u measure each others cocks guys
''I'll measure urs if u measure mine'' That would be a size up.
When a guy looks at you thighs to see if he would fit
When you size up you know the bigger the thigh gap, the looser it is
A way of saying a man got a boner, stiffy, erection, etc.
Sized up is a play on the phrase 'siezed up'.
Alexa: I came twice in a row thinking about last night
Jordan: Dayumm I just sized up hard
when you look at someone’s thighs to see how far your 🍆 will fit inside them.
“dude, i sized up my girl the other day. that sh¡t would fit all the way”
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.
Travis: "Size it up!"
Todd: "Stfu Travis."