What it means
A pushover is someone so easygoing or soft that they give in to whatever anyone wants, the friend who can't say no, the parent who folds the second the kid whines, the negotiator who caves at the first push. It's not always an insult, sometimes it's just being too nice for your own good, but it does mean people get their way with you every time.
Usage examples
"Ask Dad, he's a total pushover, he'll say yes before you finish the sentence."
"Don't be a pushover in the meeting, hold your ground on the price."
"She's lovely, but she's such a pushover that everyone dumps their shifts on her."
"If you keep acting like a pushover, they'll walk all over you every single time."
Where it comes from
Recorded in English since the early 1900s, pushover comes from the plain image of someone who can be pushed over with barely any effort. That physical wobble turned into a social one, so the word landed on people who cave easily, get talked into things, or don't put up much resistance.
