what does "BAAD--E-SAMOOM" [با د سموم ] mean?

Re: what does “BAAD–E-SAMOOM” با د سموم ] mean?

mushkil to nahiiN…agar aap do lafz ko alag alag jaante haiN to mushkil nahiiN…dusre lafz ke ek ‘form’ se aap aur ham Khoob waaqif haiN…zaraa sii badli huii soorat hai us lafz kii aur shaayad isii liye mushkil lagtaa hai.