the meaning is basically if you are sneaking behind your parents back they don't know what your doing and if they find out they probably wouldn't like it sneaking always gets you into trouble don't do it unless absolutely necessary.there is also times when it is ok take for instance Christmas it is ok to sneak out and buy a present or sneak it in your room.
when your parents dont know
Peek.
Creep
It would be difficult to sneak into the White House.Sneak (v., adj.): To sneak (verb).To move stealthily (adjective).
The word 'snuck' refers to moving in a stealthy or secretive manner. The term 'snuck' is often used as a past tense variation on the word 'sneak', commonly used in the UK and US
sneak peek
Sneak-er.
The present tense is sneak/sneaks.The past tense is sneaked. (Snuck is often used in American English)The future tense is will sneak.
Sneaked Is the original past tense form, but snuck is optional.
Prowl?
Sneak, Kanes
Jack opened the fire-escape door, allowing his friends to sneak into the movie.