The One With The Ride-Along - S5-E20
Question: What is the joke supposed to be when Ross says "Want me to grab the berry for you?" to Gary in the car, and he says that it's called the cherry, and Ross goes, "Chandler!". I never understood that joke, can someone please explain?
Answer: Chandler deliberately told Ross the wrong name for the red light, knowing that Ross would try and look "cool" to Gary by using the correct slang, but instead end up making himself look stupid.