This is slang for to watch out, be the lookout.
Wastewater is: aguas servidas OR aguas residuales.
to throw/cast
To get sung?
Los aguas.
To skip class is "echar la leva".
In Spanish, echar means to throw, to give, to pour, or to tell. 'Echo' (pronounced EY-cho) would mean 'I throw', 'I give', etc.'Te echo' could therefore mean 'I give (to) you', 'I throw (to) you', 'I tell you', or even 'I pour (for) you'.
Aguas Azules
Aguas frescos.
¿condujeron sólo ellos en el echar agua? i think....
"Browse" could be "mirar (to look at/through)", "echar un vistazo (give a looksy)" or "explorar" which is browsing on the computer.
It comes from the words: "Echar para adelante" and it's a slang phrase that means going foward, advance. In Puerto Rico it's used when a situation is hard for some reason or when adversity strikes and you keep on going.
pilar (as in pillar) puesto (military post) correo (mail) (noun) echar al correo (to post e.g. a letter)