Related Clues:

• Permeate
• Persistently annoying sound
• Dribble
• Penetrate, with 'through'
• Percolate slowly
• Slip (in)
• Get introduced slowly
• Move slowly
• Trickle (through)
• Result of melting
• Leak slowly
• Nerd
• Trickle (in)
• Flow slowly
• Ooze through the cracks