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1.
when you've been up for like a day and a half and everything anyone says or does is the funniest thing you've ever seen
I'm so sreepy...

ha ha ha ha ha ha!! ha ha haaa ha aha ah a hhha aaahahahha ha haah haha ahha... wooo... ha... (laugh at the fact that you're laughing) etc...

you have the sleepy ha has
by pantsless June 14, 2008
 
2.
The uncontrollable laughter reached at the late hours of the night where everything seems funny.
It's 3 a.m. and Claire finds everything amusing because she has the sleepy hahas.
by Sleepyhahas February 09, 2011
 
3.
1.being really hyper right before you go to sleep

2. Another form of Apple Pie

3. skydiving from a plane while flying over zambia
1. mom: ahahahahah woooohooo yeahhh aaaahhhh wahhhabbaba
dad: get rid of your sleepy haha's this minute fool

2. John: Bring me a piece of that sleepy haha

3. Susan: I'm going sleepy hahaing on friday june 3rd at 2:09 pm once i get my license
by awsome October 26, 2007