What it means
A helicopter-parent is the mum or dad who hovers over their kid's every move, swooping in at the first sign of trouble, emailing the teacher about a B, packing the perfect snack and never letting the child fall or fail on their own. The constant hovering is the whole image, always circling, never landing. It comes from a good place but leaves no room to grow up.
Usage examples
"Her mum is such a helicopter-parent, she still calls the lecturers about her grades."
"Try not to be a helicopter-parent, let the kid figure out the playground himself."
"Mate, he's 19 and his dad still rings up about his shift changes. Proper helicopter-parent stuff."
"She's a total helicopter-parent, lurking round every little problem before the kid's even had a go."
Where it comes from
The image is older than the parenting books. Psychologist Haim Ginott is widely credited with using helicopter parent in 1969, describing a parent who hovers too closely over a child. The term then spread hard through US parenting talk in the 1990s and 2000s, when the hovering metaphor really took off.