Meaning

• An amorphous, compact mass.

  "Our cat loves to play with a small wad of paper."

• A substantial pile (normally of money).

  "With a wad of cash like that, she should not have been walking round Manhattan"

• A soft plug or seal, particularly as used between the powder and pellets in a shotgun cartridge, or earlier on the charge of a muzzleloader or cannon.

• A sandwich.

• An ejaculation of semen.

Meaning

• To crumple or crush into a compact, amorphous shape or ball.

  "She wadded up the scrap of paper and threw it in the trash."

• To wager.

• To insert or force a wad into.

  "to wad a gun"

• To stuff or line with some soft substance, or wadding, like cotton.

  "to wad a cloak"