clutter up

US /ˈklʌt.ər ʌp/
UK /ˈklʌt.ər ʌp/
"clutter up" picture
1.

堆滿, 弄亂

to fill a space or area with too many things, making it untidy

:
Please don't clutter up the table with your books.
請不要用你的書桌子弄亂
The old furniture was cluttering up the attic.
舊家具堆滿了閣樓。