Answer: HEP

Hep is a crossword puzzle answer that we have spotted over 49 times. You can view all possible clues for this answer below.

Clues

• What was cool in the '50s?
• Not square
• Like a cool cat
• Cool, in old slang
• Up on things, in the '40s
• Like '40s boppers
• Cool, '50s-style
• Cool, once
• Lead-in for cat
• In the know, in old slang
• In the know, old-style
• Tuned in
• Up on things, daddy-o
• Like many a 21-Down
• Viral inflammation, informally
• Cool, in the '40s
• Zoot-suited, say
• Not squaresville
• Clued in, once
• Cool, to a cat
• With it, once
• Plugged in
• With it
• Sound repeated while marching
• With it, 50's-style
• With it, baby
• With it, man
• Cool, man
• Jivey
• In the know
• Drillmaster's word
• With it, in the 50's
• Like cats, once
• Like some cats
• Wise
• Drill bit?
• Wise, man
• Jitterbug's "cool"
• With it, 40's-style

---