To snick is to cut a small notch, or to make a light clicking sound. Snick the thread, the lock snicked shut, snick a corner off.
The sound sense is the commoner: things snick shut, which is quieter and more precise than a click. In cricket a snick is a faint edge off the bat, and it is what the fielders appeal for when nobody else heard it.
1verbsnickTo cut a small notch, or to make a light clicking sound.
“The lock snicked shut behind her as the door closed.”
snick is a cut, or a sound.
Probably from the old phrase snick or snee, meaning to cut and thrust with a knife, from Dutch.
Probably from snick or snee.
Etymology from Wiktionary, CC BY-SA