"yeah boy" means hell yeah, its slang for yeah.
Yeah defiantly, it may mean she likes you.
Yeah. If you really mean it , i mean it's good to know that someone wants you to be safe when you travel.
Yeah you should. Yeah you should.
It means, yeah yeah whatever
Yeah yeah or yes
It means, "Uh, yeah." or "Well, yeah."
um, yeah i think you should go see a doctor as soon as you can man!
Yeah
yeah
Many people say it when they want to say yeah yeah yeah, because of the jingle
It means yeah, yeah, yeah. I think it's because of the song in the commercials that went "honey comb crunch, yeah yeah yeah"