Buy time
Definition 1 of 1
Pro Tip 1/3Strategic Delay
Used when someone needs extra time to prepare or postpone an outcome. 
The lawyer's objection was an attempt to buy time for gathering more evidence.
Pro Tip 2/3Tactical Distraction
Often involves changing the subject or creating a diversion to gain time. 
During the debate, he told a story to buy time while he thought of an answer.
Pro Tip 3/3Time-sensitive Context
Most appropriate when a quick decision or action is expected or needed. 
She spilled her coffee to buy time and avoid answering the uncomfortable question.