Related Clues:

• Seep (through)
• Creep through the cracks
• Ooze through a porous substance
• Shutout spoiler
• Move like flood mud
• Make visible
• Behave like lava
• Baseball tally
• Behave like lava out of a volcano
• Slimy semi-liquid
• Exit gradually, very gradually
• 'Danger! Danger!'
• Prison break, e.g.
• Fire __
• __ room