The act of strapping an explosive device (fireworks, firecrackers, hand grenade, etc.) to oneβs erect penis before ejaculation so as to coincide the explosion with the climax, typically while receiving anal sex.
Dude, I got a Shaft Blaster last night from my girlfriend, I wish I could do it twice!
A male sexorgan afflicted with a sexually transmitted disease
Rebecca decided to herpes fuck John. He had a gross blister shaft, but he was really hot. She made him wear a condom so she figured she would be safe.
Two days later her pubic hair started itching. She didn't get the herp, but she crabs.