Related Clues:

• Apply paint crudely
• Paint incompetently
• Paint sloppily
• Companion to wattle in sustainable building
• Slap (on)
• Smear on sloppily
• Spot area knight has captured
• Paint roughly
• Smear, like finger paint
• Coat with plaster, say
• Mark on a bingo card
• Apply messily, as fingerpaint