A person from Guatemala is called guatemalteco but the slang is chapin.
A person from El Salvador is called El Salvidoranyo but the slang is Guanco.
Mano means hand, but it also means good friend, or brother.
Mala onda means bad waves, but it also means not cool or not good.
Chambòn means someone that goofs off and doesn't do well.
Hìjole is expression of surprise.
Puchica is an expression of anger.
Chulo means that you think that a guy is cute. And Chula means you think that a girl is cute.