There is this joke i really dont get can someone explin it to mee i will rate best answer 5 star!?...'x?

It's one of those stupid ones that aren't funny, but just pose an excuse to laugh your **** off. Normally there's one idiot in the group (in this case, you) who thinks it's a real joke and tries to work it out. Not managing this, as there's nothing to get, the idiot will go home and puzzle over it for a few hours, before asking Yahoo Answers.