phrasal verb. When something heels over, it leans over very far as if it is about to fall over. The little sailing-boat moved briskly along, heeling over under a nice breeze. [

Is it heeled over or keeled?

"Heeled over" refers to something any sailboat does in a strong wind. "Keeled over" refers to turning turtle.

Is heel an insult?

heel (n. 1)

Meaning "back of a shoe or boot" is c. 1400. ... "contemptible person," 1914 in U.S. underworld slang, originally "incompetent or worthless criminal," perhaps from a sense of "person in the lowest position" and thus from heel (n. 1).