Sense Sonnet - Tickler

What the...!

A space station crisis is had.
The only toilet will not flush.
Back up is getting awful bad,
Not something just aside to brush.
The astronauts have tried their skills
To get the vital throne to work.
But, not trained in such sewage spills,
They cannot drain the muck and murk.
"Just jiggle the handle a bit,"
Is the best from NASA gurus.
Then the fan really hits the shit.
NASA has to tell the bad news.

They can't find a plumber to send,
'Cause it's a holiday weekend.