It seems probable that the famous 'Cerne Giant'—a colossal human figure wielding a club—which is cut in the chalk on the hill-side east of Cerne Abbas in Dorsetshire, may belong to the Bronze Age and be connected with phallus-worship. […] it is petrographic, colossal, nude, ithyphallic, and clavigerous; and that ' forms which possess these five characteristics have been found in the rock carvings of Scandinavia ... and belong only to the Bronze Age and to its overlap with the Early Age of Iron'.
Source: wiktionary