Blind pigs, butt watching, porntaches, cocaine binges, Tilda Swinton surrounded by stuffed animals and more all explained here, folks. 

In case you're not familiar with this Fallon segment, he swaps his phone with a celebrity and they each choose some questionable snaps off each other's devices and ask for more details. They must have NO photos on their phones cause they find the pics they're looking for within seconds, as opposed to the usual plight of endless scrolling amidst mumbles of "wait, sorry, I'll find it now in a second."
 
As for why Amy is always upset when in LA: "My arms register as legs."