Related Clues:

• Go slowly (through)
• Ooze slowly
• Slimy stuff
• Seep (through)
• Creep through the cracks
• Ooze through a porous substance
• Move like flood mud
• Behave like lava
• Behave like lava out of a volcano
• Slimy semi-liquid
• Exit gradually, very gradually
• Drip like slime
• Barely go
• Hardly gush
• Exude, as confidence