| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a gadget; dingus; thingumbob. |
| whack off | |
| —vb | |
| slang (intr, adverb) to masturbate | |
whack definitionand wack
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beat off definitionand ball off; jack off; jag off; jerk off; pull (oneself)
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whack (sth) definition
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whack off
Cut off, as in The cook whacked off the fish's head with one blow, or The barber whacked off more hair than I wanted him to. [Slang; first half of 1900s]
Masturbate, as in He went to his room and whacked off. [Vulgar slang; mid-1900s]