Top Definition
The horrible foamy residue that floats on the sea
Person 1: Look at that gross stuff on the sea
Person 2: You mean the Sea Phlegm?
Person 1: What the hell is Sea Phlegm?
Person 2: That gross floaty stuff that the sea sends to the outside because it doesn't want to swallow it...
by TrashyCure June 27, 2014
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