{i} one who cuts or chips; machine that grinds up tree trunks or logs into wood chips; talkative (US term); (Slang) social smoker, one who smokes cigarettes only from time to time; (Slang) person who uses narcotic drugs in small doses or only from time to time
having a cheerful, lively, and self-confident air; "looking chipper, like a man diverted by his own wit"- Frances G Patton; "life that is gay, brisk, and debonair"- H M Reynolds; "walked with a jaunty step"; "a jaunty optimist"