What's the Kennection? #376

What quantity is measured by the slug in the imperial system and the kilogram in the SI system?

What TV and Las Vegas star owned at least 30 cars, including his “Rhinestone Roadster” and a mirrored Rolls-Royce with a license plate reading “88 KEYS”?

“En bloc” and “fragmentary” are the two types of what alcoholic episodes, in which drinkers don’t form or retain memories?

Billy Joel’s “Ballad of Brenda and Eddie” comes from his 1977 song named for “Scenes from” what kind of place?

On what holiday do young celebrants spin a top called a dreidel?

What's the "Kennection"?