2 definitions by Dr. Gray

When you hear a song by Jessie J and you mistake it for a song by Katy Perry, which gives you a boner.
I used to think that the song "Domino" was sung by Katy Perry, which gave me a huge boner when I would hear it. But then I found out it was Jessie J, so it was a False Katy Perry Boner all along.
by Dr. Gray March 2, 2012
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A penis that is so large it takes 3 days to completely penetrate a woman during sex
The reason I was gone all weekend was because I was having sex with Chris and he has a Three Day Schlong!
by Dr. Gray October 7, 2011
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