CHIP IN

а. собир. вмешиваться; принимать участие (в разговоре, складчине и т. п.) The conversation was very pleasant until our talkative neighbour chipped in. б. входить в долю; принимать участие в (чем-л.), поддерживать If everyone chips in a few pounds, there'll be enough to help the homeless family. Members of the youth club were asked to chip in a few hours' work each week to help people in the neighbourhood.