ges ‧ tic ‧ u ‧ late /dʒeˈstɪkjəleɪt, dʒeˈstɪkjʊleɪt/ BrE AmE verb [intransitive]
[ Date: 1600-1700 ; Language: Latin ; Origin: past participle of gesticulari , from gestus ; ⇨ ↑ gesture 1 ]
to make movements with your arms and hands, usually while speaking, because you are excited, angry, or cannot think of the right words to use SYN gesture :
Jane gesticulated wildly and shouted ‘Stop! Stop!’
—gesticulation /dʒeˌstɪkjəˈleɪʃ ə n, dʒeˌstɪkjʊˈleɪʃ ə n/ noun [uncountable and countable]