TinTin++ Mud Client Manual
         ELSEIF

Command: #elseif {conditional} {commands}

         The elseif statement should follow an #IF or #ELSEIF statement and is
         only called when the statement is true and the proceeding #IF and
         #ELSEIF statements are false.

Example: #if {1d3 == 1} {smirk};#elseif {1d2 == 1} {snicker}

Related: case, default, else, if, switch and regex.