Rimshot

A rimshot is a percussion technique used to produce an accented snare drum backbeat. This sound is produced by simultaneously hitting the rim and head of a drum with a drum stick: "the sound is part normal snare and part loud, woody accent," "generally sharper, brighter and more cutting," as this produces large amounts of overtones. The stroke is used on the snare in rock, pop, and blues and on the tom-toms in Afro-Cuban music and reggae.

In marching percussion there are three types of rimshots. The most common is the "normal" rimshot, which is played with the tip (bead) of the stick held about three inches from the rim. This produces a prominent, accented tone. The second is the "ping shot", where the bead is struck about one inch from the rim. This produces a high pitched sound. The third is a "gock", which is produced by hitting the bead of the drum stick at the center of the drum while the rim is percussed with the distal shaft of the stick (near the hand). This makes a lower sound.

In Latin percussion, timbale players use rimshots near the edge of the head, but these sound very different from gocks in marching percussion.

In orchestral percussion, a rimshot is performed by placing one drum stick with the stick head near the middle of the drumhead, and the shaft pressed against the rim, and striking with the other stick. This produces a less powerful, but more precise and accurate rimshot than its marching cousin. This is known as a "stick shot".

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Wikipedia