Hirr hirr
An onomatopoeia imitating a laughing sound. Used to indicate insincere or disengaged laughter, e.g. as a response to a bad joke, or to something only moderately humorous.
Moderately funny person A: The database won't accept my input.
Tech: It's too big.
A: That's what SHE said!
Tech: Hirr hirr.
Tech: It's too big.
A: That's what SHE said!
Tech: Hirr hirr.