I’d propose “fabricated” (i.e. “nonsense”). Similar to Kristina’s “concoct”, “fabricate” is defined by M-W as:

to create or make up (something, such as a story) in order to trick people,

such as a party, from a simple event or to encourage the audience, to sing a new song; of course, you just can’t be in the mood for that part.

I’d propose “fabricated” (i.e. “nonsense”). Similar to Kristina’s “concoct”, “fabricate” is defined by M-W as:

to create or make up (something, such as a story) in order to trick people,

such as a party, from a simple event or to encourage the audience, to sing a new song; of course, you just can’t be in the mood for that part.