Has " I need to shave my butt " been the first thought in your head when you wake up in the morning ? How about " I need to shave the dog 's butt " ? " Tropic Thunder " is frickin ' hilarious .

Question: What about Tropic Thunder is so hilarious ?
Answer: The jokes about shaving butts told in the movie are amusing .Shaving your own butt is something that everyone wakes up thinking about .The thoughts in peoples heads when they wake up are always hilarious .The idea of shaving a dogs butt is the first thing that comes to mind when waking up .