- [during a secret FMV where Duke is in his kilt outfit and then he reveals his butt under his kilt]
- Duke Nukem: Knight me or bite me, man!
- Woman's Voice: Ohh! Do that again!
- [says it sometimes if you make Duke stand for a while]
- Duke Nukem: [impatient] What are you waiting for, Christmas?
- [says it sometimes if you make Duke switch to his kicking attack stance]
- Duke Nukem: I'll kick you in the "nuts"!