What does beat it uuuuup mean?

beat it uuuuup meaning in Urban Dictionary

An stronger type of beat it up. While beating it means having intercourse with a woman, beating it uuuuup indicates really going at it constantly or carrying it out several times. The greater you drag out the "u" in "up," the more strenuous and/or duplicated you're attempting to state that the work was. Additional focus is added by sticking your tongue out during the "uuuuu" part.