Where someone constantly thinks of everything as a joke/makes joke that are unfunny or no one laughs at despite the comedic intention.
"Flop" as the jokes, well, flop as how unfunny they are.
"edian" comedian,play on words.
"He/She is such a flopedian, none of his jokes are funny"
"He/She is such a flopedian, I wasn't making a joke but they took it as if it was"
Flowering Tulip describes the butt hole. If you look at a butthole you will see the center exit (or entrance for some) and around that shows the wrinkling from the excess skin which allows it to expand. This looks like a flowering tulip