YOU SAID:
the rat goes boom boom
INTO JAPANESE
ネズミはブームブームを起こす
BACK INTO ENGLISH
Rats have a boom boom.
INTO JAPANESE
ネズミはブームブームを起こしている。
BACK INTO ENGLISH
Rats are booming.
INTO JAPANESE
ネズミが活況を呈している。
BACK INTO ENGLISH
Rats are booming.
That didn't even make that much sense in English.