A girl gives a guy fellatio and he comes in her mouth. Before she swallows he shoots her in the head, causing the jizz to eject from her head similar to that of a sperm whale.
Dude #1 "Watching Free Willy reminds me of the time I sperm whaled that ho"
Dude #2 "Boy, you are one sick fuck"
by Boo Bee December 9, 2008
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When you pick up a woman of bigger size and when having sex with her you put her face down and blow your load in her ass and watch it spray out like a sperm whale.
by The_Only_Freakass November 5, 2010
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When you're fucking a girl, choke her until she's at the point of passing out. Once she is out of breath, pull out and splurge you're load all in her mouth. Her first deep breathe will inhale you're cum deep into her lungs.
She was very interested in marine biology so I took her to the beach and showed that bitch the sperm whale inhale.
by Maze Men March 13, 2009
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A wet willy but with semen. You cum on your finger and stick it in their ear.
That nasty asshole gave me a sperm whale.
by Bon bon the magnificent December 14, 2009
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To be possessing an incredibly humongous and meaty penis that is also complete with rather large testicles behind it.
If you have ever played the video game Grand Theft Auto: Vice City and have also have played the part where you(as Tommy Vercetti) get to run a porn film studio, you may also remember this quote from the porn film director(when he talks to the female porn star Candy Suxxx) you were working with:

"Oh COME ON darling! He's hung like a sperm whale for pity's sake, how can you not feel the part?!"





Mark H. Contributing to the universal English sexual slang vocabulary on UrbanDictionary since February 2004.
by Mark H May 4, 2005
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The reason why the ocean is salty and you became pregnant after you went swimming
"Damn the ocean is salty!"
"That's just from whale sperm"
by Yourdick May 7, 2015
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