"Get weaving" is a phrase commonly used to encourage someone to start working quickly or diligently. There are numerous synonyms for this phrase that can be used interchangeably, depending on the context. Some of the alternatives include "hurry up," "get moving," "get cracking," "put your nose to the grindstone," "jump to it," "buckle down," "roll up your sleeves," "hit the ground running," "spring into action," and "get down to business." These synonyms can be used effectively to motivate someone to start working efficiently and to complete their tasks in a timely manner.