Ma'anar ƙamus na "ƙarfe drum" kayan kida ne wanda ya samo asali daga Trinidad and Tobago, wanda aka yi ta hanyar bugun ƙasan gangunan mai na ƙarfe don ƙirƙirar sautin kiɗa daban-daban. Ana kuma san shi da kwanon karfe ko kwanon rufi. Ana yawan amfani da ganga na ƙarfe a cikin calypso, soca, da sauran nau'ikan kiɗan Caribbean.
