Simply an acronym for 'You Can Eat Your Lunch In The PE Toilets' -pronounced 'WHY SEE LIT PET'-
because.. where else would you eat your lunch? It is simply the best place to eat your lunch at any time during the school day, just watch out for when the urinals turn on because your sandwiches might get wet.

(This acronym is not to be confused with TPETATBPTEYL, 'The PE Toilets Are The Best Place To Eat Your Lunch' because you have to be extremely disabled to use this saying over the far superior one)

Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.