When someone is said to be 'pashin' or 'pashing' another, they are flirting with them/wanting to get with the person/bare loving them off but in a very excited manner - over the top like an over-enthusiastic young girl meeting R Patz.

This term could equally be used to describe something spasming out/flipping out, like a phone breaking constantly - spasming, being retarded.
Kim: "Oh my GOD look at him ahhhh!!!" :O :O :O

Emily: "Calm down, stop pashin! You're embarassing me gurl"

OR:

Kim: "My phone is pashin out! I'll text you later hoodrat"

Emily: "Trololol okay babe"
by EdSheeran April 23, 2011
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