noun, verb, bulged, bulg⋅ing.| 1. | a rounded projection, bend, or protruding part; protuberance; hump: a bulge in a wall. |
| 2. | any sudden increase, as of numbers, sales, or prices: the bulge in profits. |
| 3. | a rising in small waves on the surface of a body of water, caused by the action of a fish or fishes in pursuit of food underwater. |
| 4. | to swell or bend outward; be protuberant. |
| 5. | to be filled to capacity: The box bulged with cookies. |
| 6. | to make protuberant; cause to swell. |

Bulge
A slang term used to describe a rapid advance in prices within the commodities market.
Investopedia Commentary
A bulge is similar to a rally on equity exchanges.
See also: At The Market, Bear, Break, Bull, Buoyant, Congestion, Rally