The phrase 'drop change' is not part of standard English usage.
It is possible that it has been used in a specific context with some meaning to the author or speaker. It is not clear what the phrase is intended to mean and so cannot be used in written English without further clarification. For example, if someone dropped coins in a jar, you could say "That's two dollars in drop change."
'That little creep with the dog begging for money".' Indeed, many passers-by are drawn less by her than by her pet, who this day rests a weary head upon Julie's thigh and shivers despite the red sweater wrapped tightly around her. Several people who drop change in Julie's cup announce, "This is for the dog".
They drop change in an orange self-service dispenser and get back a chit with a number.
They drop change in an orange self-service dispenser, get back a chit with a number, and use that code to sign on to one of 78 PC screens in the fast-food outlet.
He was going to let the ball drop, changed his mind, couldn't get his "racket around on it".
The pressure drop changes from positive to negative to extract the oil gas quickly.
Pressure drop changes resulting from the growing biofilm are described and explained.
At last, the pressure drop changes caused by the superficial flow distributions were analysed in the apparatus scale.
This visualization result of the bubbles can exactly provide a reasonable explanation for the pressure drop changes in different flow fields mentioned above.
When a melt is quenched, the shape of the drop changes suddenly, resulting in drastically different apparent interfacial tension values, if the quenched shape is used.
Figure 7 tells us how the overflow rate and producing pressure drop changes with time using pre-packed screen of the mixture of the fine-silty sand and clay.
As a pure solvent drop evolves via a mixed solvent water drop to a pure water drop, changes in drop size, drop surface area, and drop temperature are observed.
