look up any word, like thot:
 
1.
Saying this with a straight face is a polite way of letting you know...its NOT funny.

This occurs after sharing something seemingly funny as the listener responds with a straight face and no vocal inflection.
A:
Next thing I know, the guy vomited all over the train, lucky none got on me, but the best part was his shirt...
It read: "In my life, every day is a disaster..."

B:

That's funny (straight face).
by T. Polkinghorne February 11, 2010

Words related to that's funny

lol fail haha
 
2.
An alternative to actually laughing, can also be accompanied by laughter.
Most annoying when said without the laughter and consistently, and with a strait face.
"And the Rabbi walked into the pole!"
"That's Funny."
by idefyphysics March 31, 2010