Definitions

1. adjective

badly shaped, especially with uneven or jagged edges

“The tree’s broken branch had a few naggy ends that needed to be trimmed.”

2. adjective

tending to nag or be annoyingly persistent in urging or reminding

“My naggy sister keeps reminding me to do my chores on time.”

3. adverb

in a nagging manner

“He nagged her constantly, and she just couldn’t take it any more.”