absolute
an absolute fool

act
to act the fool

allow
an allowed fool

April
April fool

fool
stop fooling with that gun!

fool about
...to be fooling about / to be

fool around
...to be fooling about / to be

mate
fool's mate

no
he is no fool

nobody
to be nobody's fool

notion
...made a fool of

of
a fool of fools

perfect
to be a perfect fool

play
to play the fool / to play the buffoon

rope
...give a fool a rope, and he'll hang himself

stark
he is a stark fool

utter
to be an utter fool

waste
experience is wasted on a fool