make (someone's) mouth water

if the smell or the sight of food makes your mouth water, it makes you want to eat it.

The smell of fish and chips made my mouth water.

• hit someone right between the eyes
• hit someone up
• hit someone where it hurts
• hit someone where it hurts most
• hit something hard
• hits the fan
• hit stride
• hit the books
• hit the bottle
• hit the brakes
• hit the brick wall
• hit the buffers
• hit the ceiling
• hit the deck
• hit the dirt
• hit the ground running
• hit the hay
• hit the headlines
• hit the jackpot
• hit the mark
• hit the nail on the head
• hit the panic button
• hit the right note
• hit the road
• hit the roof