revertigo

when you see people from your past, you start acting like you did when you used to spend time with them. (i.e. you start acting like a 14-year-old when you unexpectedly run into your freshman year boyfriend at the grocery store)

as made popular by the character of marshall erikson on an april 2008 episode of cbs sitcom “how i met your mother”.
when linda, the 50-year old elegant socialite, would squeal with delight, bounce on her heels and speak in 70’s youth-vernacular whenever she got together with her sorority sister patty. her husband explained to his friend, “it’s just revertigo.”
8 more definitions
brought on by being near a person or persons from your past, revertigo is when a person begins to act how they did at the time they knew said person(s).

coined by the character marshal eriksen on the show “how i met your mother.”
tim: why is jerry talking like that?
michael: revertigo. he was really into the whole beatnik thing in high school.
going back in time, in personality
when lily meet her old highschool friend her personality went revertigo
when you’re around someone from your past and you revert back to the person you were when you knew them.
you know who gets really bad revertigo, lily when she’s around her old friend mich-lle.
dizzyingly inexplicable reversion to past behavior in the presence of a lost aquaintance once -ssociated with the behavior.
made famous by robin sparkles on himym (how i met your mother). she got revertigo and started acting like a high schooler when when her first boyfriend showed up unexpectedly.
a phenomenon where when you’re around people from your past, you start behaving like them.
“robin, your revertigo is really starting to affect your work.”
phenomenon when you’re around peoples from your past you start behaving like them. from how i met your mother ep “sand castles in the sand”.
“dude whenever beth (white girl) sees her old friend, shaniqua, she suffers from revertigo and starts talking black…its hilarious!”