"When the cat's away the mice will play." - when the authority figure is gone, those under the authority will not work as hard
"To let one's hair down." - to relax, to be natural, and uninhibited
"Pick up steam." to get energy, speed, or popularity
"Burn" - English slang used when someone has just proved someone else wrong, been sarcastic to them, or rejected them. "She wouldn't go out with me. " "Oh man, burn."
"Crazy" - an adjective meaning extremely or very. "Man that exam was crazy hard.",
"Don't go crazy on that" - meaning don't work too hard on that, or don't worry too much.
"She went crazy on me."- She was very angry and yelled at me and or/hit me.
"I'm so dead."- I feel really really tired
"You're so dead!" - You're in big trouble!
"Meh." - A sound of indifference. "Hey you know that report is due tomorrow right?" "Meh, I'm almost done"
"Creeper" - a creepy person who follows you, a stalker
"Creepy"- something like a bug, or scary dirty stalker person
"To Creep" - to keep track of someone's personal events in an a manner not fitting with the level of relationship you have. To continually watch someone's activities. "He I was creeping your photos on facebook last night, and I saw something cool."
