like a blow job, only the performer is drunk and/or stupid and gives head to the gear shift in a car or truck.
Chet - Man, Betty was so plastered last night she leaned over and slobbed on my truck's gear shift all the way home!
Roy - What a blond job! Did you horse collar her?
Chet - Naw, I just let her think it was me, I got with Debbie out at the barn.