pop out vs bulge out

pop out and bulge out both are verbs.

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

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

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

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