tinhorn

noun

1. someone, especially a gambler, who pretends to be important but actually has little money, influence, or skill.

adjective

2. cheap and insignificant; small-time: a tinhorn racket.

noun

1. a cheap pretentious person, esp a gambler with extravagant claims

adjective

2. cheap and showy

adj.“petty but flashy,” 1857, from tin + horn (n.); originally of low-class gamblers, from the tin cans they used for shaking dice.