A bucket that is required when an individual known as 'Peter' laughs so hard that he vomits and brings people to the point of being concerned about his health.
Example: Oh shit, grab the laughter bucket, Peter's about to hurl
by Aesthesus January 24, 2018
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When chatting on the internet you laugh so hard that rather than typing "lol" you randomly smash the keyboard and the result resembles something like hjdskfhkdfkdsj
(alphabetical laughter is commonly seen in a chatroom/private message setting)

guy 1: my dog just ate a box of crayons then left a rainbow in the neighbors yard...

guy 2: hdskjfhsdkfjhdsl
by lIl_Pandora_lIl July 8, 2015
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A rare disease that only goes to the sweaty try-hards, trying to get a laugh and not a fake one. This disease will make you knock your head back and laugh up to the ceiling. This laugh is very easy to pick out of the crowd when you hear it. When you hear a har-har-har sound, you will feel bad for someone.
"HAR HAR HAR!"
Well someone has Knockback Laughter...
by jdm714 January 26, 2018
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1: Laughing so hard, it could kill you.

2: Laughing so hard that it hurts.
3: Laughing so hard that you feel you are going to die, can't breath, etc. Ex: Hearing the best joke ever.

4: A sinister laugh that is full of evil. ex: A cackling witch
5: Laughter that is lifeless and does not sound happy.
"The witch gave the deadliest laughter when she cackled."
"Never tell a zombie a joke, it will give the most deadly laughter you have ever heard."
"After telling the joke, the room was full of deadly laughter."
"That emo stoner girl has the most deadly laughter when she hears a joke. It freaks me out."
"I nearly died from laughter when I heard the punch line."
by ldmtwo September 30, 2013
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Where you wheeze while laughing for consecutive minutes (or hours) over something so hysterical that you can’t stop laughing for a bit, it’s also hard to talk without a laugh interrupting…
Brian: Rob, I’m watching this hysterical cinnamon challenge! Now I can’t stop laughing!
Rob: Dude, be careful with that uncontrollable laughter… you’re gonna hurt yourself, Brian…
Brian: I’m sorry, I can’t help it! BAHAHAHAHAHAHAHA!!!!!!!!!
by FellowGonzalez September 9, 2022
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Refer's To Any Player Who Easily Charms The ladies with Jokes And One liner's, Eventually Getting Them Into Bed.Which Might Lead TO Pregnancy
SANDRA: Alice Is Pregnant?

DION: Let Me Guess!!! It Was Carl.

SANDRA: YUP!! Pregnant Laughter
by MATTHEW AND NAWI November 30, 2007
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When you don't find the joke funny, but everyone around you is laughing, so you've to fake laugh so as to get along with the crowd.
Person 1: Did you find their jokes funny?
Person 2: No, not at all.

Person 1: But you were laughing with everyone.
Person 2: That was peer laughter.
by InternetHuman July 8, 2015
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