To attempt something which, in the face of a massive adversary is equivalent to trying to drown out a thunderstorm with a feeble fart. Can also be used as an exaggerated way of describing how one's attempts at 'getting the message across' to an individual or party were met with a overpowering sense of hopelessness and futility. Often out of pure frustratrion.
Trying to speak to the manager about my complaint was useless. All she did was talk-talk and not listen. I might as well have been farting against thunder!
Crazy, Mad, Insane (temporarily). Best describing someone who has done something crazy or possibly personally damaging without knowing or without care.
Hey you ting tong man, what you do? Why you drink so much?
Spunk, Sperm, Semen, Jizm, Jizz, Man-fat etc.
I cracked one out on top of her and a big lump of jod landed on her tits.