Law of diminishing marginal utilityis always a great word to know.
So is ninnyhammer. Does it mean:
So is doohickey. Does it mean:
So is ort. Does it mean:
a fool or simpleton; ninny.
a chattering or flighty, light-headed person.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a gadget; dingus; thingumbob.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.