Used for someone who miss all the time when aiming a dustbin with paper or something else.
Can also be used in sexual situations.
1st: Rahh! Missed again!
2nd: Dude you aim by the ass!

Jake: Whoops, my dick just missed your ass!
Gloria: What an Ass-aimer!
by peter64 May 18, 2009
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When you're flexing how good your aim is to someone
Person A: I'm too fast for you to shoot me!
Person B: (headshots them) You can suck my aim's ass!!!
by Endr9 February 4, 2020
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