conceal one's true motives from especially by elaborately feigning good intentions so as to gain an end; "He bamboozled his professors into thinking that he knew the subject well"
an unexpected and inexplicable change in something (in a situation or a person's behavior, etc.); "the vagaries of the weather"; "his wealth fluctuates with the vagaries of the stock market"; "he has dealt with human vagaries for many years"
a nonfunctional replica of something else (frequently used as a modifier); "a toy stove"
manipulate manually or in one's mind or imagination; "She played nervously with her wedding ring"; "Don't fiddle with the screws"; "He played with the idea of running for the Senate"