monkey on one's back

Strong matches

• bag
• bent
• craving
• dependence
• enslavement
• fixation
• hang-up
• hook
• inclination
• jones
• kick
• obsession
• shot
• thing

Weak match

• sweet tooth

Strongest matches

• coercion
• obsession
• preoccupation
• urgency

Strong matches

• constraint
• demand
• drive
• driving
• duress
• duty
• engrossment
• exigency
• force
• hang-up
• necessity
• need
• prepossession
• pressure
• urge

Weak matches

• have on the brain
• tiger by the tail

Strongest matches

• pressure
• restraint

Strong matches

• coercion
• compulsion
• driving
• duress
• goad
• hang-up
• impulsion
• motive
• necessity
• repression
• spring
• spur
• suppression
• violence

Weak matches

• a must
• impelling
• no-no

Strongest match

• burden

Strong matches

• albatross
• cross
• debt
• duty
• hindrance
• impediment
• load
• millstone
• obstruction
• responsibility
• saddle
• weight
• worry

Weak matches

• ball and chain
• guilt
• thorn in one's side

Strongest matches

• compulsion
• delusion
• enthusiasm
• fascination
• infatuation
• mania
• passion
• phobia
• preoccupation

Strong matches

• attraction
• case
• complex
• craze
• crush
• fancy
• fetish
• hang-up
• must
• neurosis
• phantom
• thing

Weak matches

• ax to grind
• bug in ear
• concrete idea
• idée fixe
• one-track mind
• something on the brain
• tiger by the tail