1 definition by middlemansamiam

Top Definition
When the male member retreats from the outside of the body to the inside, much like a turtle does with its neck and head.
my nude modeling opp took a turn for the worst when i looked down to find i was turtle necking.

I was a proud man when i ripped off my swim trunks at the party but after laughs emerged i had to exclaim "pool water makes me turtle neck"!
by middlemansamiam June 28, 2011
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