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3.
The kind of vehicle that a milf drives between home, school, the shops and after-school clubs. In Britain, the Volkswagen Touran seems to be gaining in popularity amongst the milf community as the preferred brat-wagon for firm butted mature boob-babes.
"For me, the milfmobile of choice this year is the safety feature packed, 150hp SE 2.0 FSI VW Touran. It really makes my 38 year old gash moist when I'm driving the kids to school."
by Wizards Sleeve May 29, 2005
 
1.
MILF - Mother I'd Like to Fuck
Mobile - moving or capable of moving readily (especially from place to place)

milf-mobile - Milf transporter
How did you get to work this morning?

I got a ride with Jason's and his mom in the milf-mobile
by Gerry June 30, 2004
 
2.
A Milfmobile is a car in which a MILF commonly drives during the day. The destinations a MILF chooses to go in the "Milfmobile" are shopping, taking the kids to school, or coming back from the gym. A Milf specifically drives a black range rover, sometimes gray.
Steve: "Hey! Look at that black range rover!"

Josh: "Yea bro, thats SUCH a Milfmobile..."
by Magic striss March 13, 2009