1.
a drawback or difficulty that is not readily evident
2.
something unspecified whose name is either forgotten or not known
3.
any clever maneuver
it was a great sales gimmick
a cheap promotions gimmick for greedy businessmen
Cricket chirping can tell the temperature outside. Counting how many times a cricket chirps in 15 seconds and then adding 40 to that number will approximately tell you what the temperature is in Fahrenheit.
