thrash

1 thrash /ˈθræʃ/ verb
thrashes; thrashed; thrashing
1 thrash
/ˈθræʃ/
verb
thrashes; thrashed; thrashing
Britannica Dictionary definition of THRASH
1 
[+ object] : to hit (someone or something) very hard with a stick, whip, etc.
2 
[+ object] informal : to defeat (someone or something) very easily or completely
3 
[no object] : to move about violently

thrash out

[phrasal verb]
thrash (something) out or thrash out (something)
: to talk about (something) in order to make a decision, find a solution, etc. : to produce (something, such as an agreement or plan) by a lot of discussion

— thrashing

/ˈθræʃɪŋ/ noun, plural thrashings [count]
2 thrash /ˈθræʃ/ noun
plural thrashes
2 thrash
/ˈθræʃ/
noun
plural thrashes
Britannica Dictionary definition of THRASH
1 
[noncount] : a type of rock music that is very fast and loud
2 
[singular] : a violent movement
3 
[count] British, informal + old-fashioned : a party with loud music and dancing