(slang, vulgar) Anus.

plural of fudge tunnel

(finance, historical) The first (1970s) attempt at European monetary cooperation, essentially pegging all of the EEC currencies to one another.

plural of flesh tunnel

(informal) A piercing in the earlobe which has been deliberately stretched to achieve a larger gauge. / (informal) A short, hollow, cylindrical piece of jewellery worn in such a piercing.

A tunnel linking two parallel main tunnels.

plural of cross-tunnel

plural of base tunnel

A census-designated place in Greenfield, Monroe County, Wisconsin, United States.

(transport, civil engineering) A tunnel driven through the base of a mountain pass, rather than through the upper slopes of the mountains.