To hit a person or object repeatedly and with great force.
"The bigger kid started wailing on him until the teacher stepped in."
To hit someone or something repeatedly and hard; to attack physically with force.
To keep hitting someone very hard, over and over.
2 meanings, ordered from most common to least. Color-coded by CEFR level.
To hit a person or object repeatedly and with great force.
"The bigger kid started wailing on him until the teacher stepped in."
To play a musical instrument, especially drums or guitar, with great energy and force.
"He was wailing on his guitar like he was born to play."
'Wail' here is likely a variant of 'whale' (to beat); the 'on' indicates the target of the action.
To keep hitting someone very hard, over and over.
Primarily American informal/slang. May also be spelled 'whale on'. The variant 'wale on' is also attested. Sometimes used figuratively to mean criticizing someone harshly. Mostly used in spoken language and informal writing.
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