2: dont worry, my mbp is already on it.
1: damn. all the blacks in school are used. we cant go out without an mbp.
B: That sounds dirty.
A: Oh shit. I've just realized an alternative meaning of MBP.
B: I meant the "I rubbed it with a damp piece of cloth and rubbed it dry with tissue" bit.
A: Well, the alternative meaning of MBP sprang up in my mind before that.