crab dinner

when I male/female orally stimulates a female who has crabs.

Tom enjoyed a wonderful crab dinner last night, one would wonder if she fed him out of spite.

Crab dinner

When a girl breaks up with her boyfriend and invites you over for "crab dinner" but is in actuality initiating oral sex

C: How was your day man?
Q: Busy day, did some gardening and had a crab dinner
C: You mean you went bushwhacking and showed off that tongue game.
Q: You know it