Top definition
A self caused cockblock, with so much blocking power, it can only be caused by a major act of stupidity; Brought upon by themselves with good intentions for the receiver, but ended up bitting them in the ass. SPTC for short.
Guy 1: "Ha! That creeper just asked the hottest girl at university for nude photos via text!"

Guy 2: "He's got major Self Propelled Torpedo Cockblock now; He's never getting laid."
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