[Sa'ar Chasm]

[color=#000000ost_uid0][quoteost_uid0]Picard: I'm sure he'll be all right. Q only came to see Riker. He said he was interested in him.
Yar: And stranded the two of them on a remote planet? Does this mean Q's reality series is Queer Eye for the Bearded Guy now?
Worf: Commander Riker does not have a beard.
Yar: Yeah, but who knows if I'll get a shot at making that joke later.[/quoteost_uid0]

I'd have to go with this joke and the penalised one as my personal favourites.[/colorost_uid0]