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
fortniteMatt: When
Chris: On Saturday
Matt: Did I ask