A term used to describe a glass of beer that has been chilled to the point where external frost physically appears on the side of the glass or can which it is contained.
Yo! Eugene! Toss me a couple frotherdogs before Notre Dame loses another game!
A specialised form of frotteurism which is performed in art galleries during a busy exhibition. The Feldman frotteur will then scrape his secretions from his y-fronts and add them to his paints. Usually done by aging yellow-haired ex-hippies.
So why were you put on the sex offenders' register?
A frotteur is a male who obtains sexual gratification by dry-humping; that is, rubbing his erect penis against the vulva of his girlfriend during which both are wearing underwear.
Tom was a frotteur. He dry-humped Megan on their first date.