wally
noun
[ ˈwɒli ]
• a silly or inept person.
• "I must have looked a total wally but I didn't care"
Origin:
1960s: perhaps a shortened form of the given name Walter. There are many theories of the origin: one story tells of a Wally who became separated from companions at a 1960s pop festival; the name, announced many times over a loudspeaker, was taken up as a chant by the crowd.
