by 2veedubs January 24, 2020

by Bladi February 26, 2008

To become substantially more complicated, especially when this was unforeseen. Colloquial expression, primarily used in (British) English. Origin: by analogy to human biological development in the womb.
by mattgemmell September 01, 2015

X= "I've been having this feeling for my co-worker and I know it's wrong 'cause I'm married"
Y= "Wow man, I think it's serious, don't let it grow legs"
Y= "Wow man, I think it's serious, don't let it grow legs"
by Darkestapathy February 07, 2007
