The description recorded on page 393 of Burke's General Armory reads:

Gu. two bars or., each charged with three mascles az. on a canton of the second, a leopard's face of the third:

The interpretation:

A red shield (feeling of bravery, fortitude in military context; represents a fiery nature) with bars of gold (richest of all metals; exceeds all others for courage and valor, purity and high value) each charged with three mascles (an open lozenge where armor is fastened) of azure (blue, representing important traits of fidelity, loyalty and truthfulness) on a canton (rectangle) of the second, a leopard's face (heroism, courage, strength and power; a generous nature of royal and noble bearing) of the third.

English heraldry is the form of coats of arms and other heraldic bearings and insignia used in England. It lies within the so-called Gallo-British tradition. Coats of arms in England are regulated and granted to individuals by the English kings of arms of the College of Arms. They are subject to a system of cadency to distinguish between sons of the original holder of the coat of arms. The English heraldic style is exemplified in the arms of British royalty, and is reflected in the civic arms of cities and towns, as well as the noble arms of individuals in England. Royal orders in England, such as the Order of the Garter, also maintain notable heraldic bearings.

(Be cautious when researching family crests, there are disreputable organisations who'll send you a picture of any old crest and tell you it's yours.)

Geer Family Tree