What do you call someone trying…

What do you call a pistachio on a spaceship? An astro-nut!

What do you call a person who doesn't fart in public? A private tutor!

What do you call the death of a guy who is hit by a falling ax? Axe-i-dental.

What do you call a cheese that doesn't belong to you? Nacho cheese!

What does a triangle call a circle? Pointless.