bumper UK /ˈbʌmpə/US /ˈbʌmpəɹ/noun 17adjective 1verb 1forms 3phrases 2 noun17 •Parts at the front and back of a vehicle which are meant to absorb the impact of a collision; fender. •Any mechanical device used to absorb an impact, soften a collision, or protect against impact.The company sells screw-on rubber bumpers and feet. •A side wall of a pool table. •Synonym of gutter guard (“rail to prevent a ball from rolling into the gutter”). •[before a noun] (informal) Anything large or successful. •(slang, old-fashioned) A covered house at a theatre, etc., in honour of some favourite performer. •A short ditty or jingle used to separate a show from the advertisements. •A shoulder button on a gamepad. •An object on a playfield that applies force to the pinball when hit, often giving a minor increase in score. •Someone or something that bumps. •(Caribbean, slang) A woman's posterior, particularly one that is considered full and desirable. •A bouncer. •A drinking vessel filled to the brim.[T]hey now shook hands heartily, and drank bumpers of strong beer to healths which we think proper to bury in oblivion. — 1749 •A cylindrical object used (as a substitute for birds) to train dogs to retrieve. •(Australia, slang) A cigarette butt. •In National Hunt racing, a flat race for horses that have not yet competed either in flat racing or over obstacles. •An extra musician (not notated in the score) who assists the principal French horn by playing less-exposed passages, so that the principal can save their 'lip' for difficult solos. Also applied to other sections of the orchestra. adjective1 •Wonderfully large; (as if) filled to the bumpers at the top of a silo, or successful in this regard.What a bumper year for apples!We harvested a bumper crop of arugula and parsnips this year. verb1 •(no longer used) To drink from the vessels called bumpers. formsbumpered · bumpering · bumpers Phrases with bumper bumper cropAn excess of something; a large yield. ride one's bumperTo tailgate.