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1. Gesticulation
To make gestures: To move the arms or hands when speaking, or to express something with movements of the arms or hands.

She uses gesticulation when she speaks.
2. gesticulation
To thrust air in excitement. A vigourous movement of the hips. Not a subtle action.

Gary Neville's favourite celebration.
'Im gesticulating in the direction of the problem'
'Dont gesticulate here, you'll get us thrown out'
'YEAH!!! GET IT!! (said with gesticulation)'
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