Lyric discussion by PaperStreet 

Cover art for Miserabilia lyrics by Los Campesinos!

What exactly does "sobbing into my warm pale palms for a better understanding of her dietary requirements" mean?! I mean REALLY?!

I'm under the impression Gareth is a vegan. I assumed it was the unhappy result of someone giving him dairy products (pretty likely in a Mexican restaurant).

"I've spend too much time on my knees next to urinals in garish Mexican restaurants Sobbing into my warm, pale palms for a better understanding of my dietary requirements"

She's obviously been giving guys oral sex in restaurants. It's commonly noted that if you're on your knees in a men's restroom, that's what you're doing. The bit about her dietary requirements is in reference to her swallowing the semen. It's mostly protein so.. yeah. So either he's been in there, replicating what she's been doing to try to understand (aka also giving head) or he's just been in...

When I first saw the lyrics, I figured that the speaker in the song was vomiting into a urinal, and the part about dietary requirements was the speaker looking at what they'd eaten and crying.