An expression used during Easter to wish someone a happy time.

(simile, colloquial) Very happy (sometimes with the extra connotations of being carefree or unaware of grimmer realities).

Having a tendency or desire to shoot a firearm irresponsibly before adequately identifying the target. / (by extension) Inclined to behave recklessly or violently at the slightest provocation.

(chiefly US, informal) One who is thoroughly content or satisfied. / Used other than figuratively or idiomatically: see happy, camper.

(slang, derogatory) A member of a Christian church whose worship is characterized by enthusiasm and spontaneity.

(slang, derogatory) Of or relating to such a worshiper or such a church.

(US, Canada) The greeting said near the holiday Thanksgiving.

(informal) The practice of physically attacking (originally, slapping), and often verbally abusing, a person and photographing or filming the attack using a camera phone, the recording sometimes being sent to others to further humiliate the victim.

A time of day, usually in the afternoon or early evening, when a bar or pub offers its drinks at a discounted price.

(informal) An instance of happy slapping.