Answer: rattat

AnswerCrossword Clue
RATTAT

Knocking noise

RATTAT

Drum sounds

RATTAT

Knocking.

RATTAT
Drumbeat.
RATTAT
Machine-gun sound.
RATTATSound of tapping.
RATTATTapping sound.
RATTATKnocking sound.
RATTATDrumming sound
RATTATKnocking sound
RATTATKnock on wood, say
RATTATSnare drum sounds
RATTATA couple of snare drum sounds
RATTATDrumming syllables