A bait machine is a

vending machine A vending machine is an automated machine that provides items such as snacks, beverages, cigarettes, and lottery tickets to consumers after cash, a credit card, or other forms of payment are inserted into the machine or otherwise made. The fir ...

that dispenses live bait, such as

worm Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete wo ...

s and

crickets Crickets are orthopteran insects which are related to bush crickets, and, more distantly, to grasshoppers. In older literature, such as Imms,Imms AD, rev. Richards OW & Davies RG (1970) ''A General Textbook of Entomology'' 9th Ed. Methuen 8 ...

, for

fishing Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment, but may also be caught from stocked bodies of water such as ponds, canals, park wetlands and reservoirs. Fishing techniques inclu ...

."Live Bait Vending Machine"Vending.com
Accessed June 2011. In the case of worms, it may be called a worm machine. Red or manure worms are kept in stock within a growing medium, and oftentimes the machines have a small reservoir in them to simulate rain and to feed the worms a nutrient solution. Electrical pulses are used to encourage the worms to come closer to the surface to obtain the nutrient solution. In connection with heating and constant high humidity, worms attain higher reproduction rates and faster growth.

References

{{fishing-stub Vending machines Fishing