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."
The act of sliding a grenade into ones or your anal cavity in an upwards motion and expelling it out with greatforce. The word is also commonly written as the acronym APG.
We need to get rid of those guards, prepare you Anally Propelled Grenade.
The act of two young women rubbing their beef curtains together for the first time. Because they seem to be attached at the virgina it looks like they have 8 limbs. They keep doing this until one or the other squirts, causing the recipient of the drentching to flee in fright.
Q. "So why aren't Jane and Mary talking to each other?"
A. "I heard they had a jet-propelled octopus and Mary freaked out"