Para el exámen de mañana tengo la chuleta perfecta. ¡Apruebo seguro!
Note: this word is also used to describe a big-headed person who ususally shows off about his appearance and stuff. It is definitely normally used to refer to men, while "chulo" can be used with the same meaning and accepts gender change: "chula".
Note to note: chulo and chula also means "cool"
¡Qué camiseta tan chula!
Cómpratelo en ese color, que es muy chulo