Urban Dictionary

What you are on right now.

Person A: "What are you on?"
Person B: "Urban Dictionary."

imac g3

A computer produced by Apple starting in 1998. It is well known for its "fruity" colours.

I just bought an imac g3 off of eBay!

ebay.gov

A website where you can buy illegal drugs that will make you Spiderman.

I bought an illegal drug off of eBay.gov, and now I'm Spiderman.