notadictionary.com
差不多是个废熊了
→ “You're basically a useless panda.”
差不多 chà⁴ bù⁴ duō¹ = almost, more or less — like 'close enough' or 'roughly'.
差 chà⁴ = difference, to be off by a bit.
不 bù⁴ = not.
多 duō¹ = much, many.
是 shì⁴ = to be, to become.
个 gè⁴ = a measure word for people or things — here it's used loosely.
废熊 fèi⁴ xióng² = useless panda — slang for someone who's lazy or unproductive.
废 fèi⁴ = waste, useless, discarded.
熊 xióng² = panda — but in this context, it's slang for a person.