head-the-ball
/ˈhɛdðəbɔːl/(also heid-the-baw) informal (chiefly Irish English and Scottish )
noun
(A name for) a foolish or silly person, an idiot.
- Used either depreciatively or affectionately, depending on the context..
Origin
1950s; earliest use found in Brendan Behan (1923–1964), writer. From head + the + ball.