When the pants on a guy or girl fall down at least 2 inches below the butt-crack reveling the butt crack, a thong or other undergarment when they sit down.
by schuppgirl June 16, 2011
by Irocn86 January 16, 2010
by MoistMeatMisslejizzyfella December 28, 2024
Me and my fat ass girlfriend wanted to scissor but had to end up flat-crackin because we're both too fat.
by Awhitewv February 05, 2022
by Aruba Farfeild January 11, 2021
by Loag_loag September 20, 2023
by ICrackPussy12 September 03, 2021