A first aid technique to return an unconscious person's respiration by pressing the rescuer's mouth against the mouth of the patient and blowing air into his/her lungs.

Mouth-to-mouth resuscitation. / (slang, figuratively) Kissing, particularly French kissing.

(idiomatic, litotes, understatement) Misbehaving, being mischievous.

(idiomatic) Doing something mischievous or scheming.

A brief informal description of how to accomplish a specific task.

that gives advice or instruction on a particular topic

(transitive, idiomatic) To compel someone to obey; to force someone into a submissive condition. / (transitive, idiomatic) To cause to act in a disciplined manner.

(idiomatic) To reach a particular maximum amount, size, value, etc. / (idiomatic) To be capable of reaching or achieving.

(idiomatic) At the usual or expected level.

As far as I know.