Be doing nothing. The phrase can be " estar Al pedo " which is a way of saying that your time, your current situation has no usefulness or importance, which is worth the same as a flatulence.
Be drunk. The phrase can be " be in fart " a variation of the more complicated " empedar " that comes from the misinterpretation of the archaic 34 Spanish; embebdarse " ( be drunk or drunk, embed ) as if it were " 34 em_pedar_se;.
In Spain and several countries in Latin America means being drunk, in State of drunkenness.
BE PEDO: be drunk, under the effects of the alcohol or of another drug.
Be piripi, be drunk, have a good melopea, achispar is, be peneque, get drunk, be as a cuba, bring a good pissed, carry a good chopping, go bolinga, carry a good peach or a good puntazo, be an abrazafarolas, go giving lurches...