1 definition by Get Back Jack

1) closely coming up behind someone
2) screwing someone from behind
Girlfriend) I got kinda scared during my morning jog through the park trails today. I wish you had been there.
Boyfriend) Oh yeah? You jog there by yourself everyday. What happened today that was so scary?
Girlfriend) There was some weirdo jogging that I've never seen before and he was totally flanking me!
Boyfriend ) Well, next time mace his ass if he gets that close to you!

Def#2}

Guy 1} My girlfriend keeps complaining that her ass is getting big. I've told her it looks great but she doesn't believe me. What do I do?
Guy 2) Man, sounds like she just needs a good flanking!

Guy 1) Good idea! Maybe then she'll get the point that I really do like her behind, from behind. lol
by Get Back Jack February 12, 2018
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