roll around vs fall out

roll around and fall out both are verbs.

Word	Noun	Adjective	Verb	Adverb
roll around	No	No	Yes	No
fall out	No	No	Yes	No

As verbs, fall out is a hypernym of roll around; that is, fall out is a word with a broader meaning than roll around:

Other hypernyms of roll around include come about, go on, hap, happen, occur, pass, pass off, take place.

roll around (verb)	fall out (verb)
happen regularly	come to pass
	have a breach in relations
	drop out
	leave (a barracks) in order to take a place in a military formation, or leave a military formation
	come as a logical consequence; follow logically