scrubbing brush
n.— «King of Foxrock was third in a maiden hurdle, Alcapone second in a conditions chase, Skibb third in a beginners’ chase and Gimli’s Axe 14th in a novice hurdle. A battle Axe, it was not. In a vernacular unique to the area an animal like that might be described as a “useless canister” or a “scrubbing brush”; for its jockey, it can be a ticket to casualty and if there is one time in the entire year when you do not want to take a fall it is now.» —“Geraghty polishes his Moscow jewel” by Tom English Scotsman (Glasgow, Scotland) Mar. 13, 2005. (source: Double-Tongued Dictionary)