'Underslung' definitions:

Definition of 'underslung'

(from WordNet)
adjective
Supported from above especially in a vehicle having springs attached to the axle from below
adjective
Having a lower part projecting beyond the upper; "an underhung jaw"; "undershot bulldog" [syn: underhung, undershot, underslung]
adjective
Having a low center of gravity; built low to the ground [syn: squat, underslung]

Definition of 'Underslung'

From: GCIDE
  • Underslung \Un"der*slung`\, Underhung \Un"der*hung"\, a. Of an automobile body, suspended from the springs in such a manner that the frame of the chassis is below the axles, the object being to lower the center of gravity of the car. [Webster 1913 Suppl.]