What does kthxbye mean?

kthxbye means ok, thank you, goodbye.

Please check with your context to make sure this definition is appropriate.

Other slang ways to say "ok, thank you, goodbye":

Slang terms related to "ok, thank you, goodbye"

And more slang terms with a-z index:

What is kthxbye slang word?

Very simple, It is ok, thank you, goodbye.