spitball (verb) coin: create, invent
Sinonime: brainstorm*,
compose,
conceive,
contrive,
counterfeit, dream up,
fabricate,
forge,
formulate,
frame, head trip,
make up, make up off the top of one's head,
manufacture, mint,
mold,
originate,
spark, spitball, stamp,
strike, think up, trump up