call one's bluff

space

U+0020

apostrophe

U+0027

latin small letter a

U+0061

latin small letter b

U+0062

latin small letter c

U+0063

latin small letter e

U+0065

latin small letter f

U+0066

latin small letter l

U+006C

latin small letter n

U+006E

latin small letter o

U+006F

latin small letter s

U+0073

latin small letter u

U+0075