This is a type of masturbation. A boy (men usually don't do this) rubs his genitals against something or someone. Often, this is without the other person's permission. A more formal term for this is frottage.
If you have "an ax to grind," then you have a complaint to discuss with someone. The image is of you sharpening your ax to chop away.
grind axes
by grind....do you mean salt or pepper?
you basically just get behind the girl and hopefully someone follows.
Youngin' on his grind refers to a young man doing his routine work. Youngin' meaning a young person; grind as in, "Back to the old grind".
your mean
back to work
n axe to grind means a complaint, something that you need to talk over with someone.
Having an axe to grind means holding a strong opinion or personal grievance that one is inclined to promote or act upon, often to the detriment of others. It suggests a hidden agenda or ulterior motive driving one's actions or behavior.
means to rub on somebody
Summer Bumping and Grind
The term grind refers to a type of dance common to rap, techno or pop music.