The weird shit people do in the back rows of cinemas, lecture theatres etc. Can refer to joking around, eating cereal, grinding Fortnite and making out as well as anything else deemed a shenanigan.
Lawyer: “Your honour my client was just engaging in some back row shenanigans”
Judge:
“Your client was whacking off during a screening of Paddington 2”
n. Any of various diseases, including chancroid, chlamydia, gonorrhea, and syphilis, that are usually contracted through sexual intercourse or other intimate sexual contact.
A few days after a drunken indiscretion with an unnamed lady friend, he felt the telltale burning of pubic shenanigans while urinating.
To accuse someone of cheating (used during gameplay); "calling shenanigans" is only used for serious offenses, however, as doing so requires the game to stop and it often cannot be continued.
While playing Monopoly...
ONE: I call shenanigans! You've taken all the money from the bank!
TWO: I have not!