go out vs pop out

go out and pop out both are verbs.

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

As verbs, pop out is a hyponym of go out; that is, pop out is a word with a more specific, narrower meaning than go out:

Other hyponyms of go out include depart, go, go away, file out, get off, hop out, fall out, get off, step out, eject, undock, log off, log out.

go out (verb)	pop out (verb)
become extinguished	come out suddenly or forcefully
move out of or depart from	exit briefly
take the field	bulge outward
leave the house to go somewhere	appear suddenly or unexpectedly; happen unexpectedly
date regularly; have a steady relationship with
go out of fashion; become unfashionable