A safety shaft is an alternative to a car seat. All you need is a dick and a bit of motivation. When there is no seat available, head for your safety shaft.
Where do I sit?
Use my safety shaft!
When your dick droops down as long as your leg
Girl: ohh shit he has a shaft leg
When a series of unfortunate events has befallen someone, and they have reached the pit of the abyss that is their life... and someone does something to remind them of what a failure they are...
After the Tyrannosaurus Rex has stormed and laid waste to Jurassic Parks main compound:
Dr Grant - "Mr Hammond, after careful consideration, I've decided not to endorse your park" - The final shaft
When someone forwards an email, meant for their eyes only, to a third party who is then pissed off at the author of said email. The author is then e-shafted.
Billy, why did you forward that email to the boss? You really e-shafted me!
A penis with a slight glazing of feaces on after anal intercourse
I fucked her in the ass but now I have a rusty shaft
The shape of the lower part of your stomach that leads to your dick... only seen with fit men
I need to start working out because I need to get my V to the Shaft
To shoot up heroin into ones shaft while violently jerking off in a toddler's room
My new born cousin so hot I went into her room and did the exploding shaft