The look you get from someone when you walk into a place of worship and they don't verbally say it, but they kind of tilt the head to the side and raise the eyebrows as if to say "hello and hallelujah" at the same time.
If it happens any other place it is simply a "hello" or other acknowledgment. But when you're in a place of worship, there's the extra glow in the face and it becomes a "smileyllujah" instead.

A portmanteau of carpe diem, a Latin phrase that means “Seize the Day!” and DM, which stands for Direct Messages. This word means seizing the day via DMs.