bulge out vs pop out

bulge out and pop out both are verbs.

Word	Noun	Adjective	Verb	Adverb
bulge out	No	No	Yes	No
pop out	No	No	Yes	No

As verbs, bulge out and pop out are synonyms defined as:

Other synonyms of bulge out include bug out, bulge, come out, pop, protrude, start.

bulge out (verb)	pop out (verb)
bulge outward	come out suddenly or forcefully
	exit briefly
	bulge outward
	appear suddenly or unexpectedly; happen unexpectedly