"ticktack" in the noun sense
1. ticktack
system of signalling by hand signs used by bookmakers at racetracks
"ticktack" in the verb sense
1. tick, ticktock, ticktack, beat
make a sound like a clock or a timer
"the clocks were ticking"
"the grandfather clock beat midnight"
Source: WordNet® (An amazing lexical database of English)
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