plouk or plook /plook/ (Scot)

1. A small lump or knob
2. A pimple, spot

• bring up on the bottle
• bring up short
• bring up the rear
• brinier
• briniest
• brininess
• bitter-apple
• bitter-apples
• bitter beer
• bitter-cress
• bitter-earth
• bitterer
• bitterest
• bitterish
• bitter-king
• bitter lemon
• bitter lemons
• bitterling
• bitterlings
• bitterly
• bittern
• bitterness
• bitternesses
• bitterns
• bitter orange