My Great Aunt Flow

 Flow, flow, my great aunt flow...

Her favorite color is red and she rears her ugly head at the most inopportune time! 

Flow, flow, my great aunt flow...

She visits once a month and sometimes she's late when she does.

Flow, flow, my great aunt flow...

Sometimes she is heavy, but sometimes she's light, but she always loves to ruin your white clothing!

Flow flow, my great aunt flow...

She'll give you a headache, and a pain in your back.

Flow, flow, my great aunt flow...

Thank God she only stays five days.