boomersplaining 

When baby boomers use their own, often outdated, personal experience to talk down on younger people, especially millennials.

Person A: "Dang, it's tough to afford college, land a job, and buy a house."

Person B: "Stop complaining, when I was your age, I worked a summer job to pay for college! Stop eating avocado toast and you might be able to afford a house!"

Person A: "Uh, thanks for boomersplaining but things are different today."

boomersplaining by mllnnl August 13, 2017

Boomsplaining 

When you're forced to explain something to a baby boomer that is considered common knowledge to both millenials and zoomers

"Had to do some boomsplaining when my Dad accidentally uploaded a close up picture of his teeth as his Facebook banner picture and then couldn't change it on his own"

Boomsplaining by Jocie69 November 2, 2019