From Pidgoen-English Hawaiian. It means "better that better" i.e. the best.
"Aw, honey, you lookin' mo betta' today!"
by george humphrey June 11, 2005
Not just betta but MO BETTA! This is la creme de la creme.
My shirt is mo betta than yours.
by 5@+0R! November 16, 2007
To attain a status better than the original.
My car is mo betta' than yours.
by Jason September 18, 2002
Mobetta meaning fly, sassy, hot. Term of endearment.
Mobettaflygirl first used by the Sugar Hill Gang to define fly women. Later made famous by Spike Lee "Mobetta Blues" meaning going through but with Swagg.
by Mobettaflygirl March 31, 2011