veg out vs loosen up

veg out and loosen up both are verbs.

Word	Noun	Adjective	Verb	Adverb
veg out	No	No	Yes	No
loosen up	No	No	Yes	No

As verbs, loosen up is a hypernym of veg out; that is, loosen up is a word with a broader meaning than veg out:

Other hypernyms of veg out include decompress, relax, slow down, unbend, unwind.

veg out (verb)	loosen up (verb)
engage in passive relaxation	become less tense, rest, or take one's ease
	cause to feel relaxed
	make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity
	cause to become unblocked
	become less tense, less formal, or less restrained, and assume a friendlier manner