Wiktionary
pop out
vb. 1 To leave a room or building with the expectation of returning soon. 2 (context baseball softball English) To be retired after three strikes, including a popouts (pop fly) on the third strike.
WordNet
pop out
v. appear suddenly; "Spring popped up everywhere in the valley" [syn: burst out]
come forth or out; "You stick the coins in, but they come out again"; "His hair and teeth fell out" [syn: come out, fall out]
bulge outward; "His eyes popped" [syn: protrude, pop, bulge, bulge out, bug out, come out]
exit briefly; "He popped out for a quick coffee break" [ant: pop in]