rathole

noun 0.643

blue hole

noun 0.618

bottomless pit

noun 0.609

rabbit warren

noun 0.599

hellhole

noun 0.596

sinkhole

noun 0.591

hole

noun 0.584

abyss

noun 0.578

wormhole

noun 0.572

pitfall

noun 0.571

downward spiral

noun 0.571

wonderland

noun 0.569

black hole

noun 0.565

burrow

noun 0.563

money pit

noun 0.560

mousehole

noun 0.559

rabbit

noun 0.547

tunnel

noun 0.543

strange loop

noun 0.541

labyrinth

noun 0.539

white hole

noun 0.538

quagmire

noun 0.538

burrowing

noun 0.538

foxhole

noun 0.534

watering hole

noun 0.533

holing

noun 0.532

swimming hole

noun 0.532

tangled web

noun 0.530

donut hole

noun 0.528

pothole

noun 0.525

time tunnel

noun 0.525

rat trap

noun 0.523

drill down

noun 0.522

snake pit

noun 0.521

maze

noun 0.520

underworld

noun 0.519

potholing

noun 0.518

cavern

noun 0.517

hell

noun 0.517

underground

noun 0.516

tunneling

noun 0.514

cave

noun 0.513

trapdoor

noun 0.510

rabbit punch

noun 0.510

dive

noun 0.509

memory hole

noun 0.509

infinite regress

noun 0.508

rabbit hutch

noun 0.507

can of worms

noun 0.506

slippery slope

noun 0.504

wabbit

noun 0.503

minefield

noun 0.503