(Verb)- When someone takes their palm and
slaps someone else on the side or the back
of that person's head. The action can be made
easily by swinging your arm, striking the back
of that fool's head; sometimes you can snap
your wrist in mid-swing to get a better sting
on that idiot's dome. Best applied to dumb-asses
and fucknuts who just WON'T learn.

Also, it was a song at one time in the 70s.
It didn't take long for my friend to get
pissed off enough to go "oops upside ya head"
on his homie for turning his whip
into a hooptie... especially when it was
so paid-for.

Any mom will go oops-upside-their-kid's-head
for bad report cards.
by CDSmith1967 April 10, 2006
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to physically (and/or brutally) beat the crap out of some one.
Matterazi: You terrorist son of a whore!

Zidane: I'm gunna smack you upside the head bitch!

(Materazzi now has a gaping hole in his cheast, world rejoices.)
by cha ching July 13, 2006
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dontt amke me smash your head in
pimp: hay man wan suome drugs
thug: can you gimmi they for free or something might go rong
pimp: mother fucker dont make me go upside your head
by ()6_twitch_9() July 2, 2006
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Looking you upside your head means to look at you in a crazy manner due to something that's going on crazy around you due to your allowance.
That wench was looking you upside your head like she had a problem with you.
by Brat069 April 25, 2019
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