plunge head-first

During this time I had accompanied three people to execution and plunged headfirst into public debate.

He opened the door and plunged headfirst into the snowstorm.

With a mighty splash he plunged headfirst into the river.

In the nick of time, he and Bud plunged headfirst into the water.

He might be plunging headfirst into chaos, but damned if he would let it show.

Then, with a yell, he toppled over backward and plunged headfirst into the ocean.

Or I could plunge headfirst into the chilly waters of self-restraint.

The burly man plunged headfirst toward the water and the raft.

Then he plunged headfirst into the Atlantic and disappeared beneath the surface.

His arms shot forward, and he plunged headfirst into the tossing waters.