‘red the bed’ 

When you have your period and there’s significant bloody leakage on the sheets when you wake up.

I forgot to put a pad on last night and I ‘red the bed’.

‘red the bed’ by Aria-Awards-For-Cats April 26, 2023

‘red the bed’ 

When you have your period and blood leaks onto the sheets in your sleep. It’s like wetting the bed only you have less control of it happening as sometimes your wearing adequate period wear but your period might be so heavy that it leaks onto the sheets anyways.

I forgot to put in tampon last night and I ‘red the bed’.

‘red the bed’ by Aria-Awards-For-Cats April 26, 2023

Red in the head fire in the bed 

Ginger haired girls are the best at sex

Friend1: oh your going out with that redhead we met at the bar.

Friend2: you know what they say “red in the head fire in the bed”

Red in the head fire in the bed by Wilson21 June 13, 2018

red under the bed 

an insidious communist presence that has infiltrated a capitalist society (the under the bed part refers to the stereotypical child's fear of monsters under the bed, often used ironically to describe the mentality of people who are paranoid about communists)

Back then the red under the bed was viewed as the driving force behind our defense budget.

red under the bed by The Return of Light Joker January 10, 2012