(humorous) Alternative form of わかりません (wakarimasen, “I don't know”)

fuse (cord)

a thousand, 1000

to lend; to let someone use / to lease / (American English) to rent out; (British English) to hire out

will you marry me

Contraction of わからない (wakaranai), the informal present negative form of わかる (wakaru).

understanding (of feelings, opinions, circumstances, etc.)

causative of わかる (wakaru) / (fiction, pornography, vulgar) to "teach someone a lesson" via rough rape

polite negative of わかる (wakaru); negative of わかります (wakarimasu)

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend