felt up vs matt-up

felt up and matt-up both are verbs.

Word	Noun	Adjective	Verb	Adverb
felt up	No	No	Yes	No
matt-up	No	No	Yes	No

As verbs, felt up and matt-up are synonyms defined as:

felt up and matt-up: change texture so as to become matted and felt-like

Other synonyms of felt up include felt, mat, mat up, matte, matte up.

felt up (verb)	matt-up (verb)
change texture so as to become matted and felt-like	change texture so as to become matted and felt-like