Instaspam
The posting of large numbers of instagram photos one after the other and clogging up the feed
Ralph: Man that dude Mark has just posted 16 photos of his cat.
Lauren: Damn I hate instaspam
Lauren: Damn I hate instaspam
Instaspamming
To post many photos on Instagram at a time.
Sheila is instaspamming me, when I signed in on Instagram saw only her face...50 times.