Definition of bash verb from the Oxford Advanced Learner's Dictionary

     

    bash

     verb
    verb
    BrE BrE//bæʃ//
     
    ; NAmE NAmE//bæʃ//
     
    (informal)Verb Forms present simple I / you / we / they bash
    BrE BrE//bæʃ//
     
    ; NAmE NAmE//bæʃ//
     
    he / she / it bashes
    BrE BrE//ˈbæʃɪz//
     
    ; NAmE NAmE//ˈbæʃɪz//
     
    past simple bashed
    BrE BrE//bæʃt//
     
    ; NAmE NAmE//bæʃt//
     
    past participle bashed
    BrE BrE//bæʃt//
     
    ; NAmE NAmE//bæʃt//
     
    -ing form bashing
    BrE BrE//ˈbæʃɪŋ//
     
    ; NAmE NAmE//ˈbæʃɪŋ//
     
     
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  1. 1[transitive, intransitive] to hit somebody/something very hard bash somebody/something He bashed her over the head with a hammer. bash into somebody/something I braked too late and bashed into the car in front. Synonymshitknock bang strike bump bashThese words all mean to come against something with a lot of force.hit to come against something with force, especially causing damage or injury:The boy was hit by a speeding car.knock to hit something so that it moves or breaks; to put somebody/​something into a particular state or position by hitting them/​it:Someone had knocked a hole in the wall.bang to hit something in a way that makes a loud noise:The baby was banging the table with his spoon.strike (formal) to hit somebody/​something hard:The ship struck a rock.bump to hit somebody/​something accidentally:In the darkness I bumped into a chair.bash (informal) to hit against something very hard:I braked too late, bashing into the car in front.Patterns to hit/​knock/​bang/​bump/​bash against somebody/​something to knock/​bang/​bump/​bash into somebody/​something to hit/​strike the ground/​floor/​wall
  2. 2[transitive] bash somebody/something to criticize somebody/something strongly Bashing politicians is normal practice in the press. a liberal-bashing administration see also bashing
  3. Word Origin mid 17th cent. (as a verb): imitative, perhaps a blend of bang and smash, dash, etc.Extra examples He had been attacked and bashed about a bit. She bashed him so hard she broke his nose. She bashed him with her book. Someone bashed him on the nose. He stood up, bashing his head on the low ceiling. I braked too late, bashing into the car in front. If I were her I’d bash his head/​face in. The boy bashed the kid’s head against the wall and then ran off. The rain bashed against the side of our tent. Phrasal Verbsbash awaybash down somethingbash somethingoutbash somebody up
See the Oxford Advanced American Dictionary entry: bash