Informal . anything done easily.

Informal . an easily defeated person or team.

Informal . a person who is easily persuaded, influenced, or seduced.

Rocketry . a displacement in a horizontal direction of the trajectory of a missile or rocket.

Aeronautics . push-down.

noun

breeze , child’s play , chump * , cinch , duck soup * , easy game , easy mark * , easy pickings , fool , kid stuff * , picnic * , piece of cake * , setup , snap , soft touch * , stooge * , sucker , victim , walkover , butt , gull , lamb , child\'s play , walkaway , chump , softy