The Bedford Glossary of Critical and Literary Terms - Ross Murfin 2018
Masculine ending
Masculine ending: A line of verse ending with a stressed syllable is said to have a masculine ending.
EXAMPLE: Each of the alternating iambic tetrameter and iambic trimeter lines in the opening stanza of Stevie Smith’s “Our Bog is Dood” (1950) has a masculine ending:
Oŭr Bóg│ı̇̆s dóod,│ŏur Bóg│ı̇̆s dóod,
Thĕy lі́sped│ı̇̆n ác│cĕnts mі́ld,
But when I asked them to explain
They grew a little wild.
How do you know your Bog is dood
My darling little child?