duck walk

Short definition from Wiktionary

Noun

1. 1
   A type of loaded walk in which the sportsman squats somewhat and steps forward or backward with his knees alternatingly while optionally carrying a dumbbell or kettlebell on each side or a kettlebell or cupped dumbbell between the legs.
2. 2
   A means of acceleration, moving with each foot turned 45 degrees from the forward position.
3. 3
   A dance or dance move, popularised in the 1950s by Chuck Berry, in which the dancer steps forwards crouching on bended knees while keeping the back straight and head erect.

Verb

1. 1
   To move through use of the duck walk.