(as) easy as A, B, C

See: as easy as pie

• sinking feeling
• sinking ship
• sink like a stone
• sink or swim
• sink teeth into
• sink teeth into something
• sink to such depths
• sink without trace
• sink your teeth into
• sink your teeth into something
• sin tax
• siphon off
• siphon off something
• sit around on backside
• sit around on your backside
• sit back
• sit back and
• sit back and do something
• sit by
• sit by and
• sit by and do something
• sit idly by
• sit idly by and
• sit idly by and do something
• sit in