This phrase is heavily based on its context. It can be used to describe how you are feeling, how good/bad somthing/someone is/looks, nearly anything... granted you provide the proper context.

Originated from the colloquial use of the word "Crazy" during "The 10:30" at Chaffey Community College in Rancho Cucamonga, CA.

"Crazy" > "Bananas" > "Bananas in Pajamas" > "Bananas in Pajamas are coming down the stairs" > "Coming down the stairs"
a) "How you doin man?"
b) "Aright, chillin.. just comin down the stairs."

"You see that new girl? She comin down the staaairs."

"Ey, your new song is comin down the stairs. Tight."

a) "You study for the test already?"
b) "Naw man.. but I heard that shit is coming down the stairs."
a) "Yea, I heard too."
by gabeB January 26, 2007
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to come down on some is to insult someone, to tease someone
Roi: "You are so ugly and fat"
Edu: "Stop coming down on me.. it's insulting!"
by Yjhk July 30, 2005
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When a guy is waiting for his morning boner to go down before he gets out of bed.
Jimmy: Yo Dan, why is Fred still in bed? Is he still sleeping?

Dan: Nah. he's just waiting for the sun to come down,
by flabbegastingg December 30, 2010
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When you realize someone you had respected has lost their mind you would refer to them as "Robespierre coming down the mountain" in reference to Robespierre's Cult of the Supreme Being festival in which he appeared at the top of a 'paper mache' mountain constructed in the center of Paris in a toga and decended to give a speech. Many saw this as proof that he thought he was more than human and had lost touch with reality.
"Oh, here's Robespierre coming down the mountain!"
by The Real Honeybear May 4, 2009
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It means that someone is implying that you should go down their area and see what happens- used commonly by south londoners-slang
by TylerH07 January 22, 2018
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