look up any word, like timebomb:
 
1.
1. To treat someone with disrespect.
2. To take advantage of someone.
Why you sizing, I gave you $10 and all you bought me was 1 cheeseburger?!?!
by FreeTrial4DeatH June 06, 2007
 
2.
To look dirty at someone (up and down)
Oooh dat nigga was just sizing you. You gonna let dat go?
by alypd September 12, 2006