Said in sarcasm to someone who you believe to be judging you for your actions, or what you have just said. It is used especially in situations when the other person is in fact not yelling, just speaking calmly about the situation.
Usually, the person using the term 'Stop yelling' is only saying this because they believe what they have just said could be taken in the wrong context or may have just sounded really stupid.
'Don't yell', 'stop shouting', 'calm down', 'calm your farm', 'relax your undies' and 'relax your farm' are all synonyms.
"I accidentally ate catfood the other day"
"Oh, ew- are you okay?" *genuinely concerned voice*
"Alright stop yelling!"
When I told her what I did on Friday, she just looked at me funny, but I told her to stop yelling.
verb: To put something out of it's misery. As in the ending of the Disney film Old Yeller, where the young boy puts a bullet between the eyes of his beloved pooch who's gone rabid or old or something.
This girl I hooked up with the other night thinks we're in love or something, I'm gonna hafta old yeller her.
Yelling random stuff at people from a moving car at people walking down the street or standing at a bus stop. Always done by hilarious people riding together who think this is the most hilarious thing to do on the face of the earth.
Guy in car drive-by yelling at other guy standing at the bus stop: "Second class citizen!!!!!"
Guy at bus stop (pretends not to notice)
Other passengers in car: "Dude, you're the best, haw haw haw."