to use / to employ / to make use of, to apply / to spend

鎖: chain

蝦蟇: toads, frogs

鎖鎌: (weaponry) A chain sickle

a toad

fell; throw down; knock down; cause something upright to become horizontal / kill / defeat / overthrow / avoid paying (a debt)

to a great extent

(weaponry) a Japanese martial arts chain weapon, that consists of a kama, (鎌, the Japanese equivalent of a sickle), on a length of kusari, (鎖, metal chain), with a heavy fundo, (分銅, iron weight), at the end.

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

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend