noun
belly-to-back suplex
A professional wrestling move where the attacker lifts the opponent from behind and falls backward, driving the opponent's back to the mat.
from English back drop
彼はバックドロップで相手をマットに叩きつけた。
He slammed his opponent onto the mat with a belly-to-back suplex.
Variant spelling with a middle dot; less common but still seen.
スープレックス is a broader term for suplexes in general, while バックドロップ specifically refers to the belly-to-back variant.
Borrowed from English 'back drop', referring to the wrestling move.