Flitsham 

Short for "Friend who Lives In The Same House As Me"
Because roommate isn't the right word and housemate or flatmate doesn't quite name it.

I totally heard my flitsham masturbate the other day!

Flitsham by PimPee April 4, 2009

flatshaming 

When you shame someone for being skinny

I’m flatshaming you

flatshaming by The only pug July 16, 2021