Your mom. Mother

Dejagoo is the strange feeling that you've been in this sticky situation before. It is dejavu due to goo. Usual symptoms are shivers down once's spine followed by disgust, especially if actual goo is involved.

Can be a number of things. Mostly it's the new flavor of the week, they are called this til they graduate to "Baby Momma" or "The Wife." Often times, old girl is a called this because she is kept on the DL and/or your ashamed of her.

the wife, especially if she's been married for many years.

As above.