Bread Kennedys
Oyasumi.
I remember there was something just like this in Gen 5. (I think KarlaKGB knows what I'm talking about, because of that video's thumbnail xD) It's no suprise that Gen 6 has this.
EDIT: I must say though, those poor poor Patrat and Lillipup xD
Egg moves can be relearnt as of this generation.
I think they were learnable before this generation as well. Maybe starting in 4th. I just remember being able to teach my Torterra wood hammer and on bulbapedia it didn't have a level number by the move, and it was at the top, indicating it was an egg move. I may be wrong though.
If you're talking about something different just ignore my post
Actually, the moves without a level are moves it would know at level 1, if it were available at that level. Also Torterra learns Wood Hammer by level up anyway. Serebii always list egg moves separately, usually near the bottom of the page.