\version "2.19.63"

wtfami = <>^\markup {
  \fontsize #5
  \bold
  "!"
}

quoted = \relative c' {
  \repeat unfold 8 {
    c4 \acciaccatura cis8 d4 f
  }
}
\addQuote "quoted" \quoted

someStaff = \new Staff {
  \quoteDuring "quoted" {
    s1*2 |
    \wtfami
    s1*2 |
    \wtfami
    s1*2 |
  }
}

\score {
  \someStaff
  \layout {}
}