tab

a bill

Example:

Pass me the tab. I'm paying.

tacky

cheap

Example:

What a tacky Christmas present. Must have cost no more than a dollar.

tad

a little, bit

Example:

Well, the exam was a tad difficult.

take a bath

to suffer from large financial losses on an investment

Example:

He took a real bath on that dot com stock he had. Had to sell his house.

take/have a crack at something

to try to do something

Example:

I had a crack at programming, but I wasn't very good.