mustache monorail

one person getting railed/dry-humped/oral sex by a single unit that happens to have a hairy upper lip.

guy #1: what did you do last night?"
guy #2: i mustached monorailed some bitch all night long!
guy #3: trust me, you're welcome. do not mustache monorail my mother ever again!
guy #2: deal.....

by eatshitanddie666 May 30, 2010