Used when someone brings up something irrelevant or not wanted in a conversation. It is used in two parts, (when) which is used when some tells you something irrelevant, then when they continue you say did i ask? It usually confuses people first time hearing it but that's the point.
Example of When did I ask?

Matt: Oi Ruben what did you go on the weekend
Ruben: Nothing much just played a bit of overwatch and watched Naruto

*Chris walks in and buts in
Chris: Oi I won a couple games of fortnite

Matt: When
Chris: On Saturday
Matt: Did I ask
by Eshays4life April 18, 2018
The thing dickheads use to completely shut down a conversation they don’t really care about. Starts by saying ‘when’ then the person be confused, and you continue by saying ‘when did I ask?’. This will achieve hatred pure hatred from the person you say it to.
Lachie: oi Damo, I scored with your chick last night
Damo: when?
Lachie: what?
Damo: WHen dID I AsK?!
by That-one-guy-you-hate March 12, 2020
The peak of retardation. The ultimate thing said, when you just want to be a complete cunt to everyone anywhere. Specifically used by 9 year olds, or people who sound 9. If you use this, do the world a favour, and never speak again.
"When?"
"What?"
"When did I ask"
by PeakofEvolution May 26, 2020
the worst of worst unfunny jokes ever to exist you arent funny, u are just annoying. please stop it, before i kill you.
"hey but when"
"tomorrow?"
"no when did i ask."
"SHUT THE FUCKING FUCK UP U FUCKING LITTLE MAN SLUT WHORE BITCH ASS DUMB FUC BEFORE I FUCK U UP U ANNOYING FUCKING LITTLE BOY"
by shesgotbunda February 8, 2021
"When did I ask" can be used as a comeback when you have no fucking idea what else to say
Guy 1: Fuck the both of you
Guy 2 & 3: When did we ask?

Example 2:
Guy 1: I got a victory royale in fortnite
Guy 2: "When did I ask"
by aidanhamammzer June 18, 2020
A person that has no friends and is trying to do a good comeback. *Tom Horne* cough cough
Me: when do we have maths
Tom Horne: When did I ask
Also Tom Horne in his head: Why didn't anyone yell "oooooooooooh" with me?
by Merco-_- April 23, 2020
When a Nine Year Old or Stupid Person wants to annoy someone for no reason and they think they are cool when they use it. Lets be honest we've seen these kids before.
When DID I ASK
Annoying Person: When
Normal Annoyed Person:??? What
Annoying Person: DID I ASK
by Lifeisfragile January 28, 2021