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No one is quite sure what he's laughing at, but as soon as the office has finally become quiet you can count on hearing his high-pitched tee hee hee
Some think the giggler has discovered the Warn button on Instant Messenger and this is the source of his joy.
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Aug 5 Word of the Day
When your so pissed off from losing multiple amount of games that you play worse and worse till your so pissed you begin leaning over your keyboard screaming over every little mistake you make and complaining about gaming imbalances

(Common in Starcraft II)
"Why is johnny screaming at his computer"

"He lost a few games of Starcraft II, I think he is Tilting"
by Lashley1337 February 14, 2012
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A person or people who sit in the corner calling others names for coming out or exposing something important.
They gathered in the corner giggling at the presenter who announced he was gay. It was their turn to whisper "I bet she is and he is", they all giggled. They were now know as the giggler(s) because it's what they did in their small corner of the room.
by Sudzy46 July 19, 2021
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Similar to the "hummer", in that a girl has put the engorged penis and balls into her mouth, and proceeds to laugh about it!
The prostitute's Jon asked for a "hummer", but when he dropped his drawers, she told him she would only be able to charge him for a "giggler"! ( size DOES matter!)
by Dicdoc April 18, 2020
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When a guy slaps a girl on the butt and it goes like bongos.
Dude, he did a giggler on her.

And they haven't talked since.
via giphy
by GigglerGuy427 January 22, 2021
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