JMD-Jamaican Dollar. Jamaica, Dollar. The Jamaican Dollar is the currency of Jamaica. Our currency rankings show that the most popular Jamaica Dollar exchange rate is the USD to JMD rate. The currency code for Dollars is JMD, and the currency symbol is J$.
Full Definition of JETSAM. 1. : the part of a ship, its equipment, or its cargo that is cast overboard to lighten the load in time of distress and that sinks or is washed ashore.
The definition of a cram is a  quick study for an exam that is very soon. An example of a cram is a 30 minute study session in the hour before a test. To cram is defined as to force something into a space that is too small or to study quickly for an exam that is very soon. An example of to cram is to fit 50 people in a room made for 35. An example of to cram is to start studying for a test the night before and stay up all night doing so.