Top Definition
When a man gets an erection in an uncomfortable public area and must tuck his penis into the buckle of his belt as to not allow others to see his excitement.
"hey dude look at those hot chicks"
(your wiener starts to rise, and you realize your grandma is across the room)
"dude I'm buckletuckin'!"
by kalytie July 25, 2009
5 Words related to buckletuckin'

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