fumble the bag
own goal
cook someone's goose
muck up
blow one's chance
be one's own worst enemy
cruel
give him enough rope and he'll hang himself
underminingly
self-sabotage
career suicide
destroy
soil
take at advantage
burn one's bridges
come to grief
ruin
ball up
strike
vitiate
eschewance
spoil
shit in someone's Cheerios
hara-kiri
blow up
professional suicide
blow up in one's face
kamikaze
stuff up
self-annihilate
disaster
tickle the dragon's tail
smash
reap the whirlwind
break
wreck
undergrub
underminer
undercut
fashous
mislead
undo
crab
misreliance
run afoul of
cut someone's throat
refringe
stand in one's own light
bitch
self-abuse
blight
untime
bewill
burn one's fingers
non-starter
stultify
blow
self-deprivation
self-seeking
backfire
doomward
bedash
give someone a hard time
self-destruction
foiling
ruinable
frustration
thwarting
self-defeating
cut bait
botch up
blemish
mug's game
cuck
malice
make shit of
pay the price
banjax
run into the ground
saw off the branch one is sitting on
shoot one's load
spell doom
fight a losing battle
blow one's load
poop on
self-destruct
abandonment
rod for one's back
put out of one's misery
eviscerate
shatterable
shit up
blunder
cut off one's nose to spite one's face
advantage
shoot oneself in the foot
fashous
doomward
ruinable
self-defeating
shatterable
underminingly
doomward
own goal
career suicide
ruin
eschewance
hara-kiri
professional suicide
disaster
underminer
misreliance
non-starter
self-deprivation
self-seeking
self-destruction
foiling
frustration
thwarting
mug's game
malice
abandonment
rod for one's back
fumble the bag
cook someone's goose
muck up
blow one's chance
be one's own worst enemy
cruel
self-sabotage
destroy
soil
take at advantage
burn one's bridges
come to grief
ball up
strike
vitiate
spoil
shit in someone's Cheerios
blow up
blow up in one's face
kamikaze
stuff up
self-annihilate
tickle the dragon's tail
smash
reap the whirlwind
break
wreck
undergrub
undercut
mislead
undo
crab
run afoul of
cut someone's throat
refringe
stand in one's own light
bitch
self-abuse
blight
untime
bewill
burn one's fingers
stultify
blow
backfire
bedash
give someone a hard time
cut bait
ruin
botch up
blemish
cuck
malice
make shit of
pay the price
banjax
run into the ground
saw off the branch one is sitting on
shoot one's load
spell doom
fight a losing battle
blow one's load
poop on
self-destruct
put out of one's misery
eviscerate
shit up
blunder
cut off one's nose to spite one's face
advantage
shoot oneself in the foot
English words for 'To ruin one's own opportunity.'
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