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1.
1) this is the automated response to anything someone says that you don't care to hear, often as a way to pacify the speaker. The words "Oh really" run together in a sing-song fashion, to create one sound, "ah-rilly"

2) a sarcastic response to any statement to show disinterest to the speaker and frustrate them with obviously false excitement about the statement. Often followed by restating their words in question form with "then or.." at the end
1) Girl: So I have this crazy friend, he's so funny. You'd love him, his name is Nate, but we all call him "Middle Bee."

Guy: Ah-rilly.

2) Douche-Bro: Dude did you see when I rolled past that all those fine bishes were staring at me?

Dude-bro: Ah-rilly? Did they stare at you then or...?

Douche-Bro: yeah dude, it was crazy bro!

Dude-bro: Aaah- Ah-rilly? Was it crazy then or...?

Douche-Bro: (sad look after realizing he's been mocked)

*As seen in MTV's I USED TO BE FAT with Trainer Joey
by TrainerJoeyMTV July 20, 2011
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