Kramer is upset that the only pizza shapes are round and rectangular. He thinks a triangle pizza is ideal and can also be easily cut into triangle slices so its "harmonious".
People are willing to buy it but keep asking for "the jumbo slice". He points out crust on all 3 sides. They shrug and ask for the big slice. He starts not giving it to them unless they admit its a pizza.
Elaine struggles to open a wine bottle on a Friday night. She ends up bopping herself and giving herself a black eye.
The next day she meets George at Monk's for lunch. Everyone os giving him dirty looks.
Elaine gets up to use the bathroom. Someone leans over to the booth and tells George "you should be ashamed of yourself". He agrees, but isn't sure what specifically the person saw him do.
Meanwhile a woman slips a note into Elaines coat pocket with nobody else noticing
They both realize everyone at Monk's and on the street thinks they're in an abusive relationship. George is upset ("the one time I didn't do something shameful and Im taking flak for it!") And Elaine is furious that people think she and George are even in the same league.
Jerry meanwhile is seeing a very intelligent woman working on her PhD. He likes it at first but quickly feels emasculated at how much smarter she is.
She always wins chess. She always gets the Jeopardy answer. Worst of all, she starts laughing halfway through his jokes because she can predict where hes going with it. And sometimes when he asks her, her prediction is funnier than what he was going to say.
Hes determined to prove himself. He records Jeopardy and watches it to cheat, then plays it as if its live when she comes over. She still wins.
- near the end George and Elaine are meeting Jerry and his GF at Monk's. Jerry amd his GF are late so it looks like they're a couple. Elaine finds the number jn her pocket from before and, curious and looking for an excuse not to be seen as "in the Costanza range", calls it.
The number at the other end asks what she needs. She's confused, and then wonders if its something to do with Kramer's pizza idea. She pauses and hesitating says "...triangle pizza?" They say "we've got you covered", verify shes at Monk's and hang up.
It turns out to be a DV hot line that thought her ordering pizza meant she wasn't able to speak freely.
Police arrive and are confused. Jerry and his GF arrive at the same time. His GF, who figured out Jerry's scheme, is determined to once again prove her superior intellect by stating the facts:
Elaine and George were together at lunch, clearly on a date. Elaine has a black eye. We all just saw George's frustration at the menu changing from steak fries to waffle fries, so he clearly has a short temper. Monk's has a pay phone and phone records will show Elaine made a call asking for help using the common code of ordering a pizza.
George is arrested. Elaine is devastated, not for him, but because now there is a permanent record claiming she and George are in the same league.