"las gusta" is not a normal structure in Spanish. Lesgusta means "They like" (or literally, it pleases them).
"Te gusta las papas" is incorrect Spanish grammar. The correct phrase would be "Te gustan las papas," which translates to "You like the potatoes."
Me gusta rastrillar las hojas
Me gusta te gusta = pleases me, please you/I like (it), you like (it)
Quod dixisti? (= What did you say? in Latin)I think you mean 'me gusta' = I like
No me gusta asear/ordenar las cosas
Me gusta jugar videojuegos / a las maquinitas.
You could say "Me gusta ir a las fiestas".
No me gusta la cebolla
"¿Te gusta pasear después de las clases?" means "Do you like to stroll after classes?"
If you mean what language, it's spanish.
'I like the girls'
No te gusta hacer = you don't like to do.