thrash about vs thresh about

thrash about and thresh about both are verbs.

Word	Noun	Adjective	Verb	Adverb
thrash about	No	No	Yes	No
thresh about	No	No	Yes	No

As verbs, thrash about and thresh about are synonyms defined as:

Other synonyms of thrash about include convulse, jactitate, slash, thrash, thresh, toss.

thrash about (verb)	thresh about (verb)
move or stir about violently	move or stir about violently