to curl up face down, in fetal-like position in self defense
This guy got knocked down in front of me and started to turtle up (face down covering his body and head with his hands).
by Ninja Turtle Nell July 21, 2010
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Verb. 1) when a turtle is flipped over and unable to right itself. 2) When your drunk ass girlfriend falls on her ass from walking in heels in Ybor city and can't get off her back in the middle of the parking garage
OMG last night my girlfriend was so drunk she fell on her back and couldn't right herself again. A total turtle up situation.
by jackrabbitslim May 01, 2014
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Verb. 1) when a turtle is flipped over and unable to right itself. 2) When your drunk ass girlfriend falls on her ass from walking in heels in Ybor city any can't get off her back in the middle of the parking garage
OMG last night my girlfriend was so drunk she fell on her back and couldn't right herself again. She total turtle up situation.
by jackrabbitslim May 01, 2014
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When a guy gets so cold, his dick draws up inside himself to the point of looking as though he may be uncut, even though he isn't.
Man, it's so damn cold in here I was turtled up and had to pull my dick out of myself just to take a leak.

I think... but it was so damn long I forget, I have a hangover and I'm gonna need chemo.
by dj_nafi November 25, 2014
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When a pregnant woman falls on her and can not get up.
Dude, did you see that pregnant lady fall? she went turtle up!!!
by bbyeater October 11, 2017
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