Botar el rancho: is to regurgitate
Botado/a: overly generous or free spending
Caballada or burrada: a stupid act
Cortar el rabo: to fire someone from a job. Despedir o cesar are the correct verbs.
Echarse un rol: to sleep. Rulearse is also used. Dormir is the correct verb.
Estaca: a cheapskate. Tacaño and agarrado are also used.
Estar como un ajillo: to be very clean
Estar como un roble: to be healthy. Estar pochotón is a synonym.
Estar pollito: to be naïve
Hacerse punta: to get a haircut
Jalado/a: emaciated. Demacrado is the correct word.
Jamonero: A bully. Matón is also used. Matonear or jamonear mean to bully someone.
Meter una puñalada: is to back stab or betray someone
Pelliscado/a: alert or astute
Pulseándola: to work very hard
Se fue en todas or se la pelo: to screw up big time