instagram boyfriend 

he'd go to ends of the earth to get the perfect instagram picture for his girlfriend

Damn, he's perfect - wifey, instagram boyfriend, bae - all in one!

instagram boyfriend by classyyhoe October 19, 2017

Instagram Boyfriend 

Cuck who needs validation posing as a boyfriend on the internet of online and "celebrated" personalities. Some looking more like brothers or sons.
Also: Instagram Husband

That pornstar seems to have an Instagram Boyfriend.

Instagram Boyfriend by pornstitute April 14, 2023

Boyfriend Of Instagram 

One is considered a 'Boyfriend of Instagram', who willingly and knowingly submits to his partner's request for either a squad photo of their drunk-ass friends or simply a solo photoshoot of themselves, all in an effort to fulfill their insatiable desire for the perfect picture. One is also considered a 'Boyfriend of Instagram', if the same "low-speed" action is committed with an other drunk squad of girls/guys that may or may not be the subject's significant other.

"I totally exposed that 'Boyfriend of Instagram' at the beach the other day.

Boyfriend Of Instagram by George Kush 42069 February 26, 2018