When someone is so tired, drunk, faded, or a combination of the following, they have an extremely hard time keeping their head upright and continually bobble their head.
Damn kid, you were so faded last night you were straight baby necking
by Mike-E Danger December 21, 2016
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The condition associated with the inability to hold your head up during an extreme level of highness. Leaning back on a couch typically resolves the problem.
Me: That couch looks hella comfy dude.
Graham: For sure dude, I got the worst baby neck right now.
by MarkyMarkWahlberg January 30, 2010
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1. The accumulation of milk, food, lint or other non distinct matter between the rolly polly fat layers of a baby's neck.

2. A meal that is so unidentifyable and mushy that it is comparable to a baby's neck jam.
1. Eww, I need a baby wipe to clean out Lily's baby neck jam.

2. Gee, mom, what did you cook? Baby neck jam? I'm ordering a pizza.

In music: "Oh hot damn baby neck jam, keep on wiping it fast as I can..."
by Kimmah May 12, 2010
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