what i wrote below is a very unimportant issue
but please, do enjoy
i was on the google search to figure out what courtesy laugh means
(pardon my bad vocab, uhuk uhuk)
and i got a link to this cool dictionary website called urban dictionary
which was an online dictionary for slang languages
so i eventually got the definition of courtesy laugh and
also a description to a much more interesting term
courtesy flush
i was quite curious by the term
and this is what came out as the definition
if i may quote Logroller...
When you're using a public restroom and your shit smells so bad you flush it as soon as possible so as not to make everyone else in the restroom puke
hahahaha
the definitions is just so blunt, honest, and very human indeed
it just surprises me that there's even a term for that situation
you should check out rest of the definitions
here
theyre all so damn hillarious