A butthole that is so beat up and streched out it looks like a worn out vagina.
John has some severe butt lips.
di Urippities poop head 23 maggio 2007
Buttlips are the part of the butt cheeks that hang below one's shorts... Just that little bit of cheek that is not the front lips, just the butt lips.
Every time my girlfriend wears her running shorts I can see her buttlips hanging out.
di Cooper2013 11 luglio 2013