/ θræʃ; NAmE / verb , noun
■ verb
1.
[ vn ] to hit a person or an animal many times with a stick, etc. as a punishment
SYN beat
2.
thrash (sth) (about / around) to move or make sth move in a violent or uncontrolled way :
[ v ]
Someone was thrashing around in the water, obviously in trouble.
[ vn ]
A whale was thrashing the water with its tail.
She thrashed her head from side to side.
3.
[ vn ] ( informal , especially BrE ) to defeat sb very easily in a game :
Scotland thrashed England 5–1.
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PHRASAL VERBS
- thrash sth out
■ noun
1.
[ U ] a type of loud rock music
2.
[ C ] ( old-fashioned , informal ) a party with music and dancing
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WORD ORIGIN
Old English , variant of thresh (an early sense). Current senses of the noun date from the mid 19th cent.