whomst'd've's'nd
An example used to confuse a Grammer Nazi
Person: The trap is set, but who's tricking who?
Grammer-Nazi: It's actually whom. It's who's tricking whom.
Person: Whomst'd've's'nd do you think you are?
Grammer-Nazi: ...
Grammer-Nazi: It's actually whom. It's who's tricking whom.
Person: Whomst'd've's'nd do you think you are?
Grammer-Nazi: ...
whomst'd've's'nd
A popular meme posted by obscure Instagram accounts, gaining popularity in early 2017. People use it to sound smart.
Jimmy: Tom, do you know who did this?
Tom: You mean, do I know whomst'd've's'nd did this? Yes, yes I do.
Jimmy: Stfu.
Tom: You mean, do I know whomst'd've's'nd did this? Yes, yes I do.
Jimmy: Stfu.