Top Definition
The STDs you get from having sex or doing sexual favors in a McDonald's bathroom, McDonald's table, McDonald's counter, ect.
Mike: -awkwardly- Dude, I found a bump on my penis...I think its herpes.
Caleb: Woah, dude are you serious? How did you get that?
Mike: Uhm...I did this chick in McDonald's bathroom.
Caleb: Damn, dude you must've ordered the McSTD.
Mike: Damnit!
by westy1515 August 08, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.