堵塞费

• 土(earth; soil; land)RADICAL
• 者(person; fellow)PHONO-SEMANTIC

An earthen wall blocks the way, like a person standing to bar the path.

• 宀(roof; cover)ASSOCIATIVE
• 土(earth; soil; land)RADICAL

Stuffing earth under a roof to seal all the gaps is what blocks and fills means.

• 弗(not; no)PHONETIC
• 貝(shell; currency)RADICAL

Expense is money that you can never keep in your hand no matter how hard you try.