You can just say "a group of X called a Y" about anything and people on the internet will believe it.
Apparently the whole "quirky unique collective nouns for different things" thing was a victorian meme. People 150 yes ago just made them up to be funny, and now they're solemnly repeated as mystical English dictionary words from the dawn of language.
It predates the Victorians by some centuries, in fact!
I’m okay with us naming things with this method
They were named by an old lady from the Southern US. Say it with a twang.
Aw, hellllnaw. Looka der. We gotta nutha messa dem dang 'guanas, hun. Y'all goan gitcher gun, shootum ded — fer dey eetup mah puhtoonyas ahgin!
TIL that I am a group of iguanas.
In a trench coat?
Pajamas right now, but usually, yeah.
Totally.
But are you also overheated?