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Combination of the words 'sperm' and 'crust'. This term is used to describe the stuff that blocks your peehole and makes urination awkward for a few seconds. Usually occurs the morning after a good wank, and subsequent failure to clean it all up properly.
1) Shit! I've got sprust again.
2) John thought he had an STI, due to the short stinging sensation when he began to urinate... the doctor laughed and told him it was just sprust.
by Dr. Bint July 25, 2004