having or serving a sexual purpose; capable of serving the purpose of sex and for which it was designed: fucktional architecture; a chair that is fucktional as well as decorative
A person who gets stoned with a certain amount of bud but however, he or she is still at their full capacity to do certain tasks without an issue. A functional stoner can go to work or a public place and act completely normal as if they're not stoned.
John: You seen the video where Bob Marley smokes a lot of bud and then get back in the studio?
David: Yea damn how was he able to pull that off?
John: Dude, he is a functional stoner that's why
Functionally nude subjects are those who are wearing a decent amount of clothing, but their main sexual regions (i.e. the breasts and pussy, and occasionally ass) are left exposed.
The nudity is functional because they are only nude enough to function in during sex
Daryl: You seemed to be ploughing Jessica behind the counter at the bar last night but she was wearing clothes?
Jake: Oh, yeah, She was only Functionally Nude