The phrase appears in the movie Tropic Thunder, when the character Les Grossman (played by Tom Cruise) tells a studio executive "A nutless monkey could do your job."
adj. when something is drenched in nut (cum, spunk, spooge, semen) or resembling something that is drenched in nut. an object that is nutley may be stiff, sticky, have a strong bleach scent, or have splattered stains on it.