underhand

alakautta

kierosti, salakähmäisesti

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

Your underhand should be entirely under the quilt.