Wirralian adjective 1noun 1forms 3 adjective1 •From or pertaining to the Wirral peninsula.There is no place called Wirral: it is purely a hundred name. Undeniably the people of that part are a clique with a Wirralian outlook. — 1938 noun1 •An inhabitant of the Wirral peninsula.You could put a Wirralian and a Boltonian in the same railway compartment and swear that they came from opposite poles of the old empire. — 1970 formsWirralians · more Wirralian · most Wirralian