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 12, 2010
Get the that's funny mug.
Joe: Hey, did you see that cheerleader who suffered from the side effects of the H1N1 vaccine? She was jerking all over the place, I couldn't stop laughing when I saw the video haha

Dave: That's not funny.

Joe: ...

Bill: soo, anyone want another beer...? I'm gonna... go get some beer.
by TheGreatDekuTree February 9, 2010
Get the that's not funny mug.
1) To make a joke or say something that is indeed funny.

2) To take the piss if someone says something funny when they usually don't
"Wow, Bob just made a funny."

"Oohh Bob. You made a funny. Well done. *Sarcastically dies*"
by jim_zombie_27 November 10, 2004
Get the a funny mug.
1. Something that causes you to laugh
2. A person who isn't quite right
1. Lol, thats funny!
2. That guy is a bit... er... funny =/
by Kodora October 4, 2003
Get the Funny mug.
A little phrase to describe the hilarity of a joke/funny incident. Is usually used when re-telling the joke/incident, or while in fits of laughter
"Ha! Ha! That's funny as!"
"Did you hear what Dave said just there? It was funny as, man!
by Ana Karenina August 18, 2009
Get the Funny As mug.