"Swingman", the Registered CoonAss, wrote:

The ones I'm talking about are the ones with the "wings on springs"
that pop
out after being poked through a pre-drilled hole. They are by far
the
strongest "wall anchors".

Those are "toggle bolts".

I try to avoid them at all costs.

They require a large clearance hole to install, and are a single use
item.

"Molly Bolts" have a stamped steel cage around the self contained
screw that expands and grabs the back side of the drywall when snugged
up.

Lighter duty than toggle bolts but very useful for hanging full length
draw drapes for example, and they are reusuable.

Lew