What does "Hold that thought" mean?
"Hold that thought" is an expression that means to remember a thought, idea, or conversation that was mentioned for a later time. It's similar to saying "Remind me later." A person will usually say this expression because something important has interrupted the conversation. Ex: A: Hey wait a minute. Aren't you going to... B: Hold that thought! I'll be right back! Ex: A: Our project is due next week and I think we should start researching... B: Okay, hold that thought. I need to pee!