1F18E (AB blood type)

bloodtypes A, B, AB and O (if BA were available, the combinatorics would be better)

test: test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test

1227

U+1F18E

🆎

missing

negative squared ab

V6.0ʲ

emoji

ab, blood, symbol, word

🆎

🆎

🆎

U+1F18E

\xF0\x9F\x86\x8E

negative squared ab

1F0CF (playing card black joker)

wiki


bad luck

cf snafu

2764 (heavy black heart)

tracker:3
iemoji


(the name is very ominous in english)

cf

26CE (Ophiuchus, 13)

wiki

zodiac's 12+1 ('plus one')
baker's dozen, tilly
odd man out
unlucky 13

in Ulysses, macintosh man

2665 (black heart suit)

tracker:2
iemoji

cf

263A (white smiling face)

wiki-smiley
wiki-smiling

tracker:9
iemoji

'generic' smiley :)

cf

evolved from 30Myo fear-grin

may express love, happiness, pride, contempt, or embarrassment

(is there an older depiction of  smile than the 1505 Mona Lisa?)

cf