The snake thrashed and twisted, cutting the grass and the nearby bushes to shreds.
The snake thrashed about madly, but only for a brief time.
The snake thrashed briefly, then snapped rigid as its muscles locked.
The snake thrashed with the sudden, wild strength of death.
Again, she smashed it down, and the snake thrashed wildly.
The snake thrashed and screamed and thrashed as it went down.
The snake thrashed wildly, trying to strike, but his grip behind its head was sure and inescapable.
The snake thrashed violently about for several seconds, then the spasms stopped; it was dead, uncoiled at his foot.
The snakes thrashed; the branch reeled in furious circles and sank beneath the surface.