00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a stew of meat, vegetables, potatoes, etc. |
| act up | |
| —vb | |
| informal (intr, adverb) to behave in a troublesome way: the engine began to act up when we were miles from anywhere | |
act up
Misbehave. For example, With an inexperienced rider, this horse always acts up. [c. 1900]
Malfunction, as in I'm not sure what's wrong with my car, but the transmission is acting up. In both usages up means "abnormally."