Rob someone, usually for drugs.

The best answer to literally anything

To come up, rob someone

A person in your life you can't get rid of or deny knowing. Other aspects of your life are fine, but there lies a big old reminder and someone is always pointing it out. Every time you look at him/her, you wish your life was stain-free.

Essentially used to mean anything crappy or shitty.

a name given to a pet dog just so when it gets loose you can scream "come stain"

essentially calling someone a shit stain. a worthless person.
stainy: someone who is shitty, neglectful or bad