from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A person who engages in the sexual act of frottage.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who commits, or has in the past committed, an act of frotteurism.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. someone who masturbates by rubbing against another person (as in a crowd)
French, from frotter, to rub; see frottage.(American Heritage® Dictionary of the English Language, Fourth Edition)
French frotteur ("one who rubs") (Wiktionary)