Ragtime blues

1) The depression one feels when one's lover is experiencing heavy flow menstruation and sex is not an option.
2) The frustration of abstaining from sex while experiencing menstruation

Derived from the words "rag and "blue" which describe a sanitary napkin and the color of testicles containing overabundant semen respectively.

1)"What's the matter? Not getting any from Amy?"

"It's been the ragtime blues lately."

2)"What's the matter, Amy? Ragtime Blues?"