This is the opposite of "Look who the cat dragged in"
Tom-Look who the dog barked in

Jim-Hahaha look who the cat dragged in
by I coin this term December 27, 2019
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A saying that might be used upon entering an establishment and discovering that the majority of people in said establishment are ugly.

or

When a bunch of people start fighting and or going crazy.
(Upon entering their neighborhood sports pub)
Mike: 10 cent wings and dollar drafts, all game, Jo-Jo!
Joe: Let's do this!
(Mike and Joe walk through the front door)
Mike: Damn, who let the dogs in?
Joe: What the f*ck?
Mike: There's never any good looking chicks here.
Joe: Nope.
Mike: 10 cent wings and dollar drafts, all game, Jo-Jo!
Joe: Here we go!
by pawntrepreneur January 12, 2011
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An expression used when a girl or group of girls that are particularly ugly walk by.
Here comes Jessica and her friends, christ, who let the dogs out.
by Seikundas September 21, 2004
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A phrase used by women in reply to guys who catcall them at the party or club.

The 2000 Baha Men song "Who Let the Dogs Out" made this phrase famous worldwide, but only for a short time. Even in that time, men liked to be known for sleeping around, so they adopted the word to refer to their friends, which is now spelled "dawg."
"Who let the dogs out tonight? I can't dance with a single guy here without him grabbing my butt or trying to take me home!"
by gred64 November 23, 2014
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Another way of saying, who farted?
I was sitting in the front rows of the cinema when I heard someone down the back yell, "Who let the dog out?"

"And then people ran screaming from the back row, as if a bomb had gone off!"
by The Moody Poet October 28, 2006
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Who let the dogs out...“Look there is Amy and her ugly friends coming out of the club
by Tasty tuna December 23, 2019
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