The term 'Bananagrams Game Piece' refers to a TILE used in the game Bananagrams. The TILE is four letters long and is used to form words in the game. Bananagrams is a word game where players use the tiles to create crosswords without the use of a board. Players must use their tiles to form words and rearrange them as other players add more tiles. The game is fast-paced and requires quick thinking and strategy.