"You have to question the modus operandi of people…

“Modus operandi” is Latin for “mode/manner of operating.”

”#YUK. RT!’@sixthformpoet: You have to question the modus operandi of people who use Latin for no reason’” was posted on Twitter by tshepOlesOle.on March 28, 2013. (The original tweet is no longer available.) “You have to question the modus operandi of people who use Latin for no reason” was posted on Twitter by sixthformpoet again on September 1, 2015.

“Dropping Latin phrases into conversations just to sound smart is definitely my modus operandi” is a related one-line saying.

Wikipedia: Modus operandi
A modus operandi (often shortened to M.O.) is someone’s habits of working, particularly in the context of business or criminal investigations; but also more generally, it is a Latin phrase, approximately translated as mode (or manner) of operating.

Twitter
tshepOlesOle.
@tshepOlesOle
Replying to @sixthformpoet
#YUK. RT!“@sixthformpoet: You have to question the modus operandi of people who use Latin for no reason.”
2:11 PM · Mar 28, 2013·Twitter for iPhone

Twitter
This Timeline is The Worst
@Greetoshitfirst
You have to question the modus operandi of people who use Latin for no reason.
2:10 PM · Mar 28, 2013·Twitter Web Client

Twitter
sixthformpoet
@sixthformpoet
You have to question the modus operandi of people who use Latin for no reason.
12:05 PM · Sep 1, 2015·Twitter for iPhone

Reddit—Oneliners
Posted by u/madazzahatter November 1, 2018
You have to question the modus operandi of people who use Latin for no reason.

Reddit—3amjokes
Posted by u/Rav4xle June 3, 2020
You have to question the modus operandi of people who use Latin for no reason.

Twitter
Tim O’Neill
@dezignguy
You have to question the modus operandi of people who use Latin for no reason.
6:27 AM · Dec 6, 2021·Twitter for iPad