So Mark and I plunged headlong into a whirlwind relationship.
Times, Sunday Times (2010)
After emerging from one civil war, the club certainly cannot afford to plunge headlong into another.
The Sun (2010)
Hold on to your hats as you twist, turn and plunge headlong through caves and rivers.
The Sun (2011)
Some of our machines were flying higher than the enemy, and plunged headlong to join the engagement.
Times, Sunday Times (2016)