Whille engaging in sexual activity one or both of the participants are fat,and their belly begins to jiggle/wiggle/slosh(sloshin') around;like waves crashing on the shore.
When a guy or girl decides to go crazy or on a "skin spree". To slosh around the person can take these three simple steps:
1. get drunk
2. make themself look "easy"
3. hook up with crazy numbers of people.
People say others were sloshin around instead of stateing the obvious that they were actualyy being a slut or man-whore.
Hey krista what you do all weekend, heard you were sloshin around?
Hey bys what ye goin at the weekend, slosh (sloshin) around?
Said of a female, "sloshing in their boots" or "sloshing in her boots" refers to a state of sexual attraction or arousal so extreme that they're "wet" (i.e., vaginally lubricated) all the way down to their feet.