Tengo algunas preguntas pero incluyen las palabras malas. No lo sé. Por favor, no elimine el tema. Tú me puedes contestar a través de mensaje privado.
¡Gracias!

Traguito - Does it refer to a shot from a weapon or from vasos pequeños?
Does "ligar" refer to just flirt or to serious intentions to get laid?
Do "el cargo que lleva" and trasero, fondillo, nalgas and culón mean all "ass"? And why it's culón, I only found culo.
My dictionary doesn't include "la pirula". Anyone?
What does "fofito" mean?
And what does these mean:
una hortera
una furcia
un gilazo
una gilada
una asaltacuna
una flojona
calientapijas
buenas gambas - I have heard this can refer to "nice legs", is it right?
el buenón
un cuerpazo
la buenota
huevón = dude?
un puchito
un pito
una cruda
fundillos de aspirina - I have heard the term refers to flat butts, but don't know if this true.
irse al trono
joder
un rapidín
Es lo que sea.
todo tránqui'
de pelos
todo va bien
todo a full
nunca mejor - never better?
un chavo
una tipa
cortamambos
pinchaglobos
plomazo
jarca
cursi
codo
plástico
macho - less bad word for gays?
un beso blanco
un beso negro
echar unas copas
ramería - a party with good girl to guy ratio?
el felpudo
la selvita
la castaña
la almeja
Dame un toque
coger - I have heard this refers to having sex but also that Spaniards using this for to catch, get hold of (etc) what causes mass hysteria in Latinamerica when they say they wanna catch the bus but saying something else.

Are these words so bad, that you can't even reply? ;-)

I'll answer the ones I know and have heard.

Traguito - Yes, small glasses to drink alcohol; also just a little drop of alcohol, for example, here we usually link it with 'aguardiente'
Ligar is also known as 'cuadrarse' or 'andar', yes: 'to become boyfriend and girlfriend' but I don't link it with 'to get laid'
una/un asaltacunas is someone who dates someone way younger than him/her
un cuerpazo is a good body, when someone's smoking
huevón = this is a bad word in Spanish
irse al trono is going to the bathroom
joder is the common bad word in English or 'bother'
Es lo que sea. maybe 'it's whatever'
todo tránqui' it would be like 'smooth' or 'take it easy'
de pelos is 'great', 'awesome', etc.
todo va bien is 'everything's great/good'
todo a full the same than 'todo va bien'
nunca mejor - never better? maybe
un chavo is 'a boy'
una tipa is 'a girl' but in a disrespectful way
cursi is maybe 'showy' when someone speaks exaggeratedly about someone else or something
plástico 'shallow' or 'plastic'
macho - for boys: 'brave, corageous', for girls: 'she isn't delicate or subtle'
echar unas copas is to drink (maybe after work) but not to be drunk
ramería - for me this sounds like a lot of harlots
el felpudo is (maybe) someone who has a lot of body hair
coger - You are right

Hope this helps :D

Mejor que no tengo una respuesta. ;-) Gracias!

De nada :)