[Tex/LaTex] Symbol for negated exclamation mark

Question

I need a symbol as an exclamation mark, on which a negation sign exists:

I've just checked The Comprehensive Latex Symbol List to find something useful but all I've found are the negation symbols of Pages 49-57, where there is no symbol like what I need.

Answer 1

What about this with stackengine?

\documentclass[12pt]{article}
\usepackage{graphicx,amsmath}
\usepackage{stackengine}
\newcommand{\myexc}{\mathrel{\topinset{\rotatebox{-45}{\scalebox{.5}{/}}}{!}{}{}}}
\newcommand{\stevexc}{\mathrel{\stackinset{c}{}{t}{}{\rotatebox{-45}{\scalebox{.5}{$/$}}}{$!$}}}
\newcommand{\steveyc}{\mathrel{\stackinset{c}{}{t}{.15ex}{\scalebox{1.5}[.4]{$/$}}{$!$}}}

\begin{document}
    My original answer:
    \[
    A \myexc B
    \]

    A more correct solution (see Stevens's comment):
    \[
    A \stevexc B
    \]

    Steven's elegant solution without \verb|\rotatebox|:
    \[
    A \steveyc B
    \]
\end{document}