bang average
Emphatically typical or undistinguished, but used in a context where this is inherently somewhat disappointing.
“I think it’s the worst Liverpool team I have seen in years. They look bang average." - Harry Redknapp
“The start has been bang average over the four league games so far if I’m honest” - Jonathan Woodgate
“The start has been bang average over the four league games so far if I’m honest” - Jonathan Woodgate