Stir your stumps
Definition 1 of 1
Pro Tip 1/3Colloquial British
Used in casual or informal speech, especially among British speakers. 
C'mon, we're gonna be late for the match, stir your stumps!
Pro Tip 2/3Urgency
Implies that there's some urgency or that someone should speed up what they're doing. 
The bus leaves in five minutes, stir your stumps or we'll miss it!
Pro Tip 3/3Mildly Abrupt
Can sound a bit abrupt or commanding, so use it with friends rather than in very polite or formal contexts. 
No time to explain now, just stir your stumps and follow me!