To beware; be careful; be on the alert.
*facepalm*
If your name starts with a b, its just a short form, but when someone says "what is up b" The b means "bitch".
shut the hell up
You will feel warmer as you make out.
You will be challenged and may or may not live up to it
it means that they have a crush on you and they want to be your girlfriend/boyfriend or wants to marry you
It means he wants you to contact him, usually with a phone call.
If someone says something is coming down the pike they mean its coming up soon
it doesn't really mean "what's up" people use it to say what are you doing or how have you been but mostly what are you doing
"wheels up" is when an airplane is off the ground. When someone says they are going "wheels up" it means they are flying soon.
Look up means to look above you. On the other hand, if someone says "Look IT up" it means to find your own answer.
it means that breaking up the relationship will be worse for you then for them