From bum + trap.
bumtrap (plural bumtraps)
- (obsolete, slang, rare) A bailiff.
- 1749, Henry Fielding, Tom Jones, Folio Society 1973, p. 215:
- The noble bumtrap, blind and deaf to every circumstance of distress, greatly rises above all the motives to humanity, and into the hands of the gaoler resolves to deliver his miserable prey.