Is it possible to have a paragraph break or a newline in the caption of an adjustbox?

\\ \newline and \tabularnewline don't seem to work. Thanks

\documentclass{article}

\begin{document}

BLAH BLAH BLAH

\end{document}

-
Why not simply using a table environment? –  egreg Jan 30 '13 at 13:57
Hi @egreg, in practice its a large table of data that is going in the back of a report, and is being produced from a print(xtable(x)) command in R-CRAN and knitr. –  Tahnoon Pasha Jan 31 '13 at 0:22

\documentclass{article}
\usepackage{caption}

\begin{document}
\begin{figure}
\caption{abc\\abc}
\end{figure}