To pleasure a woman orally whilst they are menstruating; usually in the morning. the phrase is taken from the popular breakfast juice produced by Tropicana.
Carl and Heather enjoyed a ruby breakfast before work”
by Sister_Vigilante September 13, 2010
Get the Ruby Breakfast mug.
Often confused for the delicious Tropicana grapefruit juice, a Ruby Breakfast is giving or receiving sexual pleasure in the morning, referring to the red coloring of either male or female genitalia. Ruby Breakfast is the morning version of Afternoon Delight.
Hey! Did you remember to drink your Ruby Breakfast this morning?

Nah, not this morning. I got my Ruby Breakfast at the crack of dawn this morning.
by food_lover12345 November 23, 2016
Get the Ruby Breakfast mug.