Aardwolf = Monkwolf

Abacterial = Abacmonkial

Abandoned = Amonkened

Abash = Amonk

Abduction = Abmonktion

Achievement = Amonkment

Adaptation = Adapmonktion

Aeromagnetic = Aeromonknetic

Afghanistan = Afmonkistan

Aftermath = Aftermonk

Ageless = Agemonk

Agouti = Amonkey

Aikido = Aimonkdo

Aldosteronism = Aldomonkism

Amberjack = Ambermonk

Anathematize = Anathemonkatize

Ant Cow = Ant Monk

Ape = Ape (or stupid Ape)

Appoggiatura = Appmonkggiatura

Arbiter Elegantiarum = Arbiter Elemanktiarum

Ascendancy = Amonkdancy

Attachment = Amonkment

Audacious = Amonkcious

Avo = Avo (it's already a funny word)

Aw-Shucks = Aw-monks!

Axeltree = Axelmonk

Azimuth = Azimonk