(as) easy as A, B, C

See: as easy as pie

• be heavy going
• be hell-bent on
• be hell-bent on doing something
• be hell-bent on something
• be hell on wheels
• behind back
• behind bars
• behind closed doors
• behind in
• behind in something
• behind schedule
• behind someone's back
• behind the eight ball
• behind the scenes
• behind-the-scenes
• behind the times
• behind the wheel
• behind your back
• be hitting head against a brick wall
• be hitting your head against a brick wall
• be hoist by own petard
• be hoist by your own petard
• be hoist with own petard
• be hoist with your own petard
• be home and dry