Small particles in a gas or liquid constantly (m)ove around randomly. Work on this "Brownian motion" led to the acceptance of atoms as physical reality
[F,19] If you think Iโd be hotter with my clit pierced to match my nipples and this picture gets over 1000 votes, then Iโll promise to be pierced before the end of Octoberโฆ Iโm serious, so please chose wisely you guys ๐๐๐