erc-cmd-Q
erc-cmd-Q is an alias for `erc-cmd-QUERY' in `erc.el
'.
(erc-cmd-Q &optional USER)
Open a query with USER.
The type of query window/frame/etc will depend on the value of
`erc-query-display'.
If USER is omitted, close the current query buffer if one exists
- except this is broken now ;-)