[ahrm-foo
l] 
| 1. | as much as a person can hold or carry in an arm or both arms. |
| 2. | Informal. a girl or woman with a well-rounded figure. |
| 3. | Informal. an obstreperous child; handful. |
| arm·ful (ärm'fŏŏl') n. The amount that an arm or arms can hold. |