backsack

The part of a man no one should ever have to see. More specifically, the back of a man's scrotum.

Dude, when I was in the locker room today I totally saw some old guy's wrinkly backsack.

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Backsack

to view testicles from behind usually caught on camera upon showing your friends your arse and leaning a little too far forward

On reviweing holiday pics:
"that was when you got your arse out, whats that dark patch between your legs?"
"backsack"

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backsacked

when someone flicks you in the sack from behind

I got backsacked
from my girlfriend when i stood in front of the tv

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