The glands in the ear canal that produce the wax make too much in some people.

VOA: special.2010.03.31

We might even put a bug in your ear or give you an idea about something.

VOA: special.2009.09.13

"As you watch the film you get in your ear a description of 'He is now hitting somebody with a stick,' or whatever the case may be.

VOA: special.2010.03.01

If so,you might say he put a bug in your ear.

VOA: special.2009.06.28

You're looking at it and feels like someone's over your shoulder talking in your ear, as opposed to someone at the blackboard, that's distant from you."

VOA: standard.2010.03.26