Answer:
My first half means container. Not a lot of people understand my language. What am I?
Tear me off and scratch my head what once red is now black.
I am a path between high natural masses; remove the first letter to get a path between man-made masses.
I cause involuntary movements in your vehicle
When I am caught I am thrown away. When I escape you itch all day.
Lynn likes grapes but not potatoes. She likes squash but not lettuce, and she likes peas but not onions. Following the same rule, will she like pumpkins or apples?