1) The sound of buttcheeks-a-flappin usually caused by an abnormally powerful fart or defecation.
2) The back door on old style long underwear
2) The back door on old style long underwear
1) That four alarm chili had me crapflappin in the bowl all night.
2) I was so drunk last night that when I put on my long underwear, I crawled in through the crapflap.
2) I was so drunk last night that when I put on my long underwear, I crawled in through the crapflap.
by The Jarvis February 22, 2006
Get the crapflapmug. by The Iron Lotus March 2, 2011
Get the crapflapsmug.