1.a small drink of liquor;
he poured a shot of whiskey
2.a tart spiciness
3.a small drink
4.small sharp biting
1.squeeze tightly between the fingers;
He pinched her behind
2.give a small sharp bite to;
The Queen's corgies always nip at her staff's ankles
3.sever or remove by pinching or snipping;
nip off the flowers