noun
plural -gels
[count] :a short heavy club
pick/take up the cudgels for
somewhat old-fashioned :to fight in defense or support of (someone or something)
verb
-gels; US -geled or Brit -gelled; US -geling or Brit -gelling
[+ obj] :to hit (someone or something) with a club - usually used figuratively
cudgel your brain/brains
US