Top definition
1. A football stance used to keep their opponent at arms length.

2. A body gesture in which the arm is extended forward with the palm open making the arm erect,stiff, and therefore immovable, keeping people from entering your comfort zone.

3. A thing people do when they want you to ease on up out their space!
Maaannn...you see dat chicken-head over there, she came all up in my grill so I had to stiff arm her ass. Is that wrong...of course not!
by NestleQck June 24, 2005
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