Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'stuff', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
stuff
Transposition0
tsuff
sutff
stfuf
Transposition1
utsff
sfutf
stffu
Transposition2
ftusf
sfuft
Transposition2r
futsf
sffut
Transposition0x2
tsfuf
tsuff
sutff
Slip3A
tusff
suftf
stffu
Slip3B
ustff
sftuf
stfuf
Omission
tuff
suff
stff
stuf
Repetition
sstuff
sttuff
stuuff
stufff
QWERTY Substitution
atuff
dtuff
sruff
syuff
styff
stiff
studf
stugf
stufd
stufg
QWERTY Repetition after
satuff
sdtuff
struff
styuff
stuyff
stuiff
stufdf
stufgf
stuffd
stuffg
QWERTY Repetition before
astuff
dstuff
srtuff
sytuff
styuff
stiuff
studff
stugff
stufdf
stufgf
QWERTY Substitution Transposed
tauff
autff
atfuf
tduff
dutff
dtfuf
rsuff
surff
srfuf
ysuff
suyff
syfuf
tsyff
sytff
stfyf
tsiff
sitff
stfif
tsudf
sutdf
stduf
stufd
tsugf
sutgf
stguf
stufg
tsufd
sutfd
stfud
studf
tsufg
sutfg
stfug
stugf
WrongDoubles
stuuf
$JSON
$address
$applyDefault
$clone
$commas
$copy
$copyFields
$delete
$entries
$expand
$filt
$getType
$isArray
$isBoolean
$isClass
$isDate
$isElement
$isFunction
$isNumber
$isObject
$isString
$isType
$isValidDate
$json2txt
$keys
$load
$matchall
$parseFloats
$pick
$postJSON
$prune
$save
$set
$sortBy
$sortKeys
$stringify
$stringifySafe
$sum
$svgPoster1
$table
$textify
$toFixed
$type
$without
Glossary
Transposition = adjacent pairs of letters are swapped
Omission = individual letters are missed out
Repetition = individual letters are entered twice consecutively
QWERTY substitution = letters are replaced by each of their QWERTY-keyboard based physical neighbours (e.g. 'h' gets replaced with y, u, j, n, b, g)
QWERTY repetition type 1 = letters are followed by each of their QWERTY-keyboard neighbours
QWERTY repetition type 2 = letters are preceded by each of their QWERTY-keyboard neighbours