I have seen this before at the start of combat, but this is the first time I have seen it in the middle. You'll see I am able to backhand twice between rounds.

wilderness <100%hp 100%m 95%mv 1283tnl (86.64%) 8 PM> dirt dark
A dark-elven scout is blinded by the dirt in her eyes!
Your kicked dirt scratches a dark-elven scout.
A dark-elven scout has a few scratches.

wilderness <100%hp 100%m 95%mv 1283tnl (86.64%) 8 PM>
A dark-elven scout's stab hits you.
Your beating EVISCERATES a dark-elven scout!
Your beating DISMEMBERS a dark-elven scout!
A dark-elven scout has some small but disgusting cuts.

wilderness <97%hp 100%m 95%mv 1283tnl (86.64%) 8 PM> backhand

A dark-elven scout's stab hits you.
A dark-elven scout's stab grazes you.
Your beating DISMEMBERS a dark-elven scout!
A dark-elven scout dodges your wrath.
A dark-elven scout dodges your wrath.
A dark-elven scout has some small but disgusting cuts.

wilderness <92%hp 100%m 95%mv 1283tnl (86.64%) 8 PM> You bring a large bone maul about with a compact backhand swing at a dark-elven scout.
Your backhanded blow DISMEMBERS a dark-elven scout!
A dark-elven scout is covered with bleeding wounds.

wilderness <92%hp 100%m 95%mv 1283tnl (86.64%) 8 PM> backhand
You bring a large bone maul about with a compact backhand swing at a dark-elven scout.
Your backhanded blow EVISCERATES a dark-elven scout!
A dark-elven scout is covered with bleeding wounds.

wilderness <92%hp 100%m 95%mv 1283tnl (86.64%) 8 PM> backhand

A dark-elven scout's stab injures you.
A dark-elven scout's stab hits you.
Your beating misses a dark-elven scout.
A dark-elven scout dodges your wrath.
A dark-elven scout is covered with bleeding wounds.

wilderness <85%hp 100%m 95%mv 1283tnl (86.64%) 8 PM> You bring a large bone maul about with a compact backhand swing at a dark-elven scout.
Your backhanded blow DISMEMBERS a dark-elven scout!
A dark-elven scout is covered with bleeding wounds.

wilderness <85%hp 100%m 95%mv 1283tnl (86.64%) 8 PM>
You parry a dark-elven scout's stab.
You parry a dark-elven scout's stab.
Your beating DISMEMBERS a dark-elven scout!
A dark-elven scout parries your wrath.
A dark-elven scout dodges your wrath.
A dark-elven scout dodges your beating.
A dark-elven scout is covered with bleeding wounds.

wilderness <85%hp 100%m 95%mv 1283tnl (86.64%) 8 PM> backhand
You bring a large bone maul about with a compact backhand swing at a dark-elven scout.
Your backhanded blow DISMEMBERS a dark-elven scout!
A dark-elven scout is gushing blood.