A thing’s wittiness or maybe just general humor level is in direct proportion to the distance across which your mind has to jump to make the proper association. I think that jump is from figurative to literal, and I think this all might have an inverse proportion to the amount of time this leap takes, but that might be throwing too many variable around.
Behold:
I am menstruating.: Nothing very witty or funny about this. Direct report.
I having my menses.: Done with that ironic lilt in one’s voice this begins to move toward humor. But it’s not really funny.
I’m having a visit from my Aunt Flo.: A bit overused, but witty, I guess.
Ugh. It’s shark week.: Wonderful! Thanks, Jen and Tina.