/snak/ , n.
1. a small portion of food or drink or a light meal, esp. one eaten between regular meals.
2. a share or portion.
3. Australian Slang. something easily done.
4. go snack or snacks , to share (profits or returns).
v.i.
5. to have a snack or light meal, esp. between regular meals: They snacked on tea and cake.
[ 1300-50; (n.) ME: a snap or bite, deriv. of snacken to snap, bite; cf. MD snack a snap; (v.) deriv. of the n. ]