What is To Travel On Mayonaise?
1.
1. to say something that is out of context.
2. When somebody is out of control because any kind of drug.
1. "This guy tripped on mayonaise, we are talking about astronomy and his unhappy comments around sports didn't help us."
2. "This guy had a lof of drug (alcohol, marihuana, and so on), that can not stop to travel on mayonaise."
Or just "Travelling on Mayonaise"
See