I choked on my latte 

Expression of disbelief upon hearing or reading a phrase or comment of great pretence, alternatively inherent wit, irony, sardonic brutality or plain mirth. The response implies a certain pretence and commensurate self deprecation on the part of the respondent. Also it may be used as a barb to insinuate a pretentiousness inherent in the inciting comment or the respondent's interlocutor.

"When I heard that the arts minister hadn't heard of the nation's greatest playwright, I choked on my latte"

I choked on my latte by Hoherbass October 6, 2019

I choked on my latte 

A regular in social media and journalist parlance, used to express disbelief at comments or actions that stand on pretense. Alternatively it is a barb or quip used to lampoon pretentiousness when in any way detected from an interlocutor.

"When I heard that the arts minister hadn't heard of the French new wave, I choked on my latte"

I choked on my latte by Hoherbass October 9, 2019