A condition or state of having just received a package in the mail from your mom, containing random items which you will absolutely never use, proving how little your mother actually knows about you.

Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.

when someone who is not a mom flips out at you and tells you what to do as if they were.

verb, past tense of "to mom"
When a child is chastised or criticized for a probable cause by a subject, the child calls her/his mom to verbally or in some cases physically beat the living crap out of the subject. This subject has just been "mommed." This technique is extremely popular among those snotty little bastard prudes who play video games at Wal-Mart for several hours, trying the same damn demo and dying within ten seconds then retrying with the same result.

Literally meaning to get owned/pwned by your mom. Defined before Kleenex's Get Mommed campaign. Unlike Kleenex's idea, to get mommed is a bad thing to happen to yourself.

To be walked in on by your mom, as you're on the computer doing weird, or otherwise sketchy shit.

v. to have ones maternal figure tell you to stop looking at your phone, TV, PC, or console.