look up any word, like ratchet:
 
1.
Nasty, derranged, long, thick yellow toenails that resemble old shells found on the beach.
Oh my god check out that dude's shella toes!
by pooeater91 November 16, 2010
 
2.
The act of performing '69' while both partners are shitting.
The perfect date - Indian Buffet followed by a hot and steaming shellato.
by Man... March 24, 2007