Lava is from the verb lavar , which means wash . In this case , it is conjugated as a formal command , by dropping the letter r . By adding te , it becomes reflexive , and specifies that you are to commit the action , i . e . duermete go to sleep , agachateduck , adoratelove yourself . Las , is the feminine plural definite article , a female version of the in english . Unlike english where one would say Wash your hands , which implies ownership of your hands , in spanish we would say Wash the hands , for any other part of the body as well , because since we have used the reflexive , it ' s implied that you are washing your hands , mouth , feet , etc . finally manos , is plural version of mano , which is hand . Using this info , you can now create simple commands , if you ' ve got a spanish dictionary , e . g . lavate la caraface , lavate los piesfeet , lavate el penepenis .