To lose my train of thought = to be talking and then suddenly forget what you were talking about. Examples Yesterday I… oh look, there’s a bird at the window. Wait, what was I saying? I lost my train of thought. Every time she tried to tell me her story, she would get...
Customer: Hey, barman! Please call me a taxi. Barman: Yes, sir. You are a taxi. Why is it funny? When the customer asked the barman to call him a taxi he meant for him to telephone a taxi company and order him a taxi to take him home. Instead, the barman took...