Gigglesaurous
Someone who cannot stop laughing and/or giggling. Usually a result from smoking mary-jane, but can also result from constant jokes and/or awkward moments. Most common in small groups and/or post-dates.
Dude: "Hey Girl"
Chick: "Sup. hahaha."
Dude: "Ok.. you alright?"
Chick: "hahah. Fine. wee.. hahaha. wow. hahaha."
Dude: "Haha damn girl.. you are like.."
Chick: "What? hahah. what huh? haha."
Dude: "A gigglesaurous."
Chick: "hahahahahahahha."