McGreets 

A name given to someone who likes to ruin potential fun being had. McGreets can come in many varieties. Some McGreets feel the need to ruin funny moments with their unimportant comments. Others like to use sarcasm at incorrect times to, instead of coming off as funny and witty, are seen as someone with a stick up their ass. McGreets is usually a friendly way of telling someone to 'shut the fuck up'.

McGreets: "Dude, that waitress wasn't digging you at all. Besides, she has a boyfriend. Why are you trying?"

Friend: "Listen here McGreets."

McGreets by IAmTheGreat November 17, 2010

McGrets 

The deep regret you feel within your bowels after having engorged yourself on a late night McDonalds combo meal.

I definitely should not have eaten that Big Mac just now. I got a case of the McGrets.

McGrets by splixx December 30, 2009

McGrets 

The feeling you get after eating McDonalds.

I McGrets having that quarter pounder with cheese. I feel like i'm going to throw up.

McGrets by altruisticaussie March 10, 2009