This command allows an administrator to remove a large amount of messages from the chat in a single command.
This will make LewdBot send a help block with the description about this command along with all it's available usages.
Specifying a number of messages will make LewdBot delete the past X messages from the chat.
L!prune <number_of_messages> <member>
Specifying a member along with the number of messages will make LewdBot filter and delete only the last X messages from that user.