The fun thing here is that Yondu's heard Bulma mention Goku. He has now heard the name Kakarot. He does not know these are the same people.

Not that it matters much, but now they're just set as two different individuals in his head. "So what happens after you beat 'im? He tries to kick your ass later or do you just kill 'im?"

One of those 'What do you do when you get what you want?' situations. "I don't think Bulma an' Trunks would take too kindly to the outright death option, but I mean, if y'all got some kinda understandin' about it." Hey, warrior cultures do that kind of thing.