secretly acting together for a fraudulent or illegal purpose
dishonest and sneaky; done in a secret or sly manner
secret; clandestine
thrown (etc.) with the hand brought forward and up from below
The lower of two hands, the hand under the work.
To trick, deceive or gull.
To toss or lob with an underhand movement.
To excavate downward in successive steps or horizontal slices while positioned above on unbroken ore.
in a sly, sneaky or secret manner
with an underhand movement