What is the meaning of Bańka?

tin can, tin churn (tin vessel with a handle on top used for storing and carrying liquids)

small glass object

diminutive of bania (“head, noggin”)

diminutive of bania (“round necked vessel sometimes in the shape of a skull”)

ventouse (round vessel for draining blood)

diminutive of bania (“calabash”) (Lagenaria siceraria)

can, churn (metal container for liquids with handles)

can, churn (contents of such a container)

bubble (spherical object filled with gas, usually made of soap)

cupping glass

bauble (any spherical object made of glass)

1. mug (bottle or other container with an alcoholic beverage)
2. decorative marble (glass beads and colored balls, used to decorate wedding wreaths, scarves, hats and spiders)

mug (bottle or other container with an alcoholic beverage)

decorative marble (glass beads and colored balls, used to decorate wedding wreaths, scarves, hats and spiders)

one million big ones (one million of any currency, especially PLN)

F (failing grade)

bauble (small spherical decoration put on Christmas tree)

synonym of głowa

pigeon basket (woven basket, similar to a bottle, woven with straw, used as a nest for pigeons)

round, open, brick tar furnace

hunk, piece (some amount of something in a single mass, especially of salt)

swelling or bump in one's ear canal

bitter apple (Citrullus colocynthis)

ball (any small round object)

diminutive of bania (“pumpkin”) (domesticated plant, in the species Cucurbita pepo)

diminutive of bania (“round vessel”)

bauble (small spherical decoration put on Christmas tree)

carboy for fermenting wine

diminutive of bania (“pumpkin, gourd, squash”) (any plant of genus Cucurbita)

whetstone case

Source: wiktionary.org