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.
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)'