To begin the act of oral sex but to stop for some unimportant reason; incomplete blow job. Grimey girls who want to get their number up, and girls who do not like giving head often do this.
Example 1:
Friend 1: So I thought this girl was giving me head last night, but then she passed out.
Friend 2: Yo, fuck that bitch... she lick and ditched
Example 2:
I was getting head, but then the girl saw Channing Tatum so she lick and ditched.