Onomatopoeia of the sound that someone makes when they trick someone.
Ha! I tricked you!
Used as opposed to HAHA, haha, hahaha, lol or hehe. Ha means something was moderately funny but not funny enough that you're laughing hard-more that you got a kick out of the joke. Used also when you don't want to seem like you're fanning over someone and seem too excited.
Thomas: My mom told me to get a life. I'm like, Mom! I have a life I'm breathing.
Leesha: Ha
a head appointment.
like a dick appointment, but only involving head.
“sis i heard you had a HA today.”
“girl you already know!”
Used by a person who's cognitive function of producing basic insults has ceased to exist or is lesser to an average human's.
Charlie: I can't speak while in a group voice chat.
Luke: Ha