to repeat an answer after someone else gives it to make it appear as if you knew it. (esp: to impress a supervisor, coach or teacher)
He kept gusmaning me!
To snub someone or humiliate them. To treat someone.
He kept nipping me in class
If someone has already called shotgun or there are no seats available: "riding Henry" is the act of riding along in the bed of a truck. More creative and advanced participants will try it on the outside of a car or any vehicle other than a truck.
" man those assholes picked me up with a full crew, so I had to man up and ride Henry by myself in the back! "
"we need to get this mattress home,so someones riding Henry in the truck cuz we don't have bungie cords".