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"Boyo" is a noun which is often translated as "el joven", and "no lie" is a phrase which is often translated as "ninguna mentira". Learn more about the difference between "boyo" and "no lie" below.
boyo(
boy
-
o
)A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
1. (colloquial) (general) (United Kingdom)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Regionalism used in the United Kingdom
b. el muchacho (M)
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
Look here, boyo. You should be grateful for what you have.Fíjate bien, muchacho. Deberías estar agradecido por lo que tienes.
c. el pibe (M) (colloquial) (River Plate)
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
How's it going, boyo? It's been a while!¿Cómo te va, pibe? ¡Tanto tiempo!
no lie( 
no
lay
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (no untruth)
a. ninguna mentira 
You've gotten yourself into too much trouble. No lie could save you now.Te has metido en demasiados problemas. Ninguna mentira te puede salvar ahora.
b. no es mentira 
I told you that I love you and that's no lie.Te dije que te amo y eso no es mentira.
2. (colloquial) (I'm not lying)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
a. no miento 
And then, no lie, the monkey stole my sandwich and watched me as he ate it.Entonces, no miento, el mono me robó el sándwich y me miró mientras lo comía.
b. digo la verdad 
No lie, I would love a drink right now.Digo la verdad, me encantaría una copa en este momento.