What is Hah?
1.
A sarcastic, often mocking or condescending laugh.
"You can't beat level 1? Hah! I beat it on my first try."
2.
HAH is a form of laughter used when someone is all out of control, the volume and extremeness of the laughter can be devided into several levels, starting with 1; a whispering HAH, up to 6, where the person laughing is all out of control and drools and spits while laughing insanely.
it's a form of "laughter" which uses the very deepest sound your voice can descent to, thus making it impossible for women to do, and making it hard for young boys.
A kid is running past smaller kids with his football, thinking he's very talented; he starts laughing in a weird way with short bursts.
"HAH, HIHAH, JAH... MUHAH"
See
3.
a word used to express what someone feels, or an addition to a sentence or word. It's often used for fun, to fool people. For example someone's riding along on a bike and then one uses: HAH
Drooling is often involved with it.
Someone says something stupid like: Bloempot(Flowerpot) HAH