John: I know, uh... you probably think you're a big shot, goin' off like this... [he slaps Curt] ... but you're still a punk.
Curt: OK, John.... So long... So long!
[Steve, Terry, Laurie and John wish Curt goodbye]
Terry: Have a good trip!
Laurie: Bye, Curt. Good-bye!
Curt: OK, John.... So long... So long!
[Steve, Terry, Laurie and John wish Curt goodbye]
Terry: Have a good trip!
Laurie: Bye, Curt. Good-bye!
John : I know, uh... you probably think you're a big shot, goin' off like this... [he slaps Curt] ... but you're still a punk.
Curt : OK, John.... So long... So long!
[Steve, Terry, Laurie and John wish Curt goodbye]
Terry : Have a good trip!
Laurie : Bye, Curt. Good-bye!
http://www.moviequotedb.com/movies/american-graffiti/quote_1426.html