Letters that make all fours
s, a, o, f, l, r, u are letters that make 'all fours'
s, a, o, f, l, r, u are letters that make 'all fours'
1 possible definitions for 'all fours'
Under this definition, all fours is a noun and has the following properties:
high-low-jack has the same meaning as all fours
pitch, cinch, auction pitch, seven-up, old sledge are types of 'all fours'.