YOU SAID:
I want to drink the contents of a lava lamp
INTO JAPANESE
溶岩ランプの内容を飲みたいです。
BACK INTO ENGLISH
You want to drink your lava lamp.
INTO JAPANESE
あなたは溶岩ランプを飲みたいです。
BACK INTO ENGLISH
You want to drink your lava lamp.
That didn't even make that much sense in English.