Top definition
1) it's not quite a rock, it's not quite a lobster; it's a Rock Lobster

2) a creature often found at parties and under docks at the beach
Someone went under a dock, there they found a rock! It wasn't a rock! It was a Rock Lobster!
by DarkMatter October 13, 2004
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2
great/stupid/funny ass song by the b-52's, redone by Peter Griffin on Family Guy
"...but it wasnt a rock, it was a rock lobstaaa(guitar plays)rock lobsta (guitar plays) ROCK LOBSTA!!!" peter griffin version of Rock Lobster
by Garita August 31, 2005
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3
Someone who picks up your coke for you and then proceeds to pinch your bag
"DT picked up an 8-ball for me but when I got it it was half a gram short"

"How did that happen?"

"DT Rock Lobster'ed me"

"That fucking Rock Lobster!"
by b0ing August 13, 2009
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4
1) the male equivalent of a camel toe. Usually achieved by wearing extremely tight pants or shorts to accentuate a clear silhouette of one's member.

Also known as "rocking the lobster"
Tommy put on his hot pants and checked the mirror to make sure that his rock lobster would be clearly visible by his fans in the front row.

by lobster girl January 07, 2008
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5
The natural bulge of a man's genitals in a pair of slim fitted pants
"That fat kid's rock lobster made me throw up in my mouth a little."
by Cornelius Vanderbilt II April 22, 2009
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6
An alcoholic shot; one part Razzamatazz, one part Crown Royal, sometimes has some Cranberry juice as well
(at a bar) "I'll have a Rock Lobster."
by bangerang January 24, 2006
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7
An exclamation of excitement.
Can be used in place of rock 'n roll.
A: Are we going?
B: Yes.
A: Rock Lobster!
by Mike Hayes January 15, 2004
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