Something that benefits from the downfall of a host.
The female Jim Jones thought of herself as a modern day Parysatis, always putting everyone on trial but herself, trying to dispatch enemies at oppurtune times. It's no wonder the name Parysatis is similar to parasite.
Someone that benefits from something others do not benefit from.
It would no longer do the dork's family any good to stay together, it would only benefit the dork, the parasite, as with many other things in life. It was about time somebody stood up to her spoiled rotten ass instead of for her.
In DayZ - A person dressed in full military gear, has at least two fully kitted automatic rifles, doesn't speak to you, dances around infront of you like he has ants in his pants, asks you at least five times if you have any 55.6 to trade and tells you that he is a soldier. When asked, doesn't know what an MOS is and proceeds to ask you for ammunition before sprinting off into the horizon, never to be seen again until you restock your tents.
Wow, that guy's a fucking parasite. All he wanted was ammo for his five guns.
Someone that keeps spamming the chat with "add me" or similar messages.
New Player: add me
S0m30n3: Okay everyone, here's how you block parasites...
Very offensive word used to describe venom
Brad: I have a parasite
Venom: PARASITE?!
A man who is clingy or possessive of his partner.
Jenny’s got a parasite and she couldn’t get rid of him!