Moves like molasses

• Isn't self-contained
• Oozes out
• Barely flows
• Oozes (into)
• Travels through a small space, perhaps
• Enters slowly
• Goes slow with the flow
• Gets into a tight squeeze, perhaps?

Wiktionary Word definitions in Wiktionary
n. (plural of seep English) vb. (en-third-person singular of: seep )