To punch is to hit hard with a closed fist. Boxers practice their sport when they punch a punching bag. Punch is also a party drink. But if you punch someone at the party, you won’t get any.
Most of us occasionally imagine what it would feel like to punch a bully. You also punch when you make round holes in paper (with a "hole punch"), and you "punch the clock," or "punch in" when you officially register that you've started working for the day. Punch is also a fruity, drink — this potable punch comes from Sanskrit for "five," for the five ingredients in a similar sweet drink. There are also five fingers in a fist. Hum.