sized up

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

by Alexob May 19, 2014

sized up

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”

by arf arf arf July 23, 2021

Sizing Up

When a guy looks a a girls thighs to determine if his thing will fit or not, if her thighs are bigger the harder it will be if they're smaller the easier it will be

"why you staring at her thighs?"

"just sizing up"

-hunnidmoji

by ilikethetasteofwater July 31, 2021

size her up

to see if a guys shlong will fit in you

id size her up at times to see if id fit in her

by seggsywh0re ;p July 17, 2021