Synonyms to fret at

bug, ALGOL, COBOL, FORTRAN, Mumbo Jumbo, abrade, addict, addle, addle the wits, adenovirus, aerobe, aerobic bacteria, aficionado, aggravate, agitate, alphabetic data, alphanumeric code, amoeba, anaerobe, anaerobic bacteria, angular data, annoy, apply pressure, arachnid, arthropod, assembler, attend, attend to, auscultate, bacillus, bacteria, bacterium, badger, bag, bait, ball up, balloon, be all ears, be at, becloud, bedazzle, bedevil, beetle, befuddle, belly, belly out, bend an ear, beset, besiege, bewilder, bigot, bilge, billow, binary digit, binary scale, binary system, bit, blandish, blemish, bogey, bogeyman, boggart, bogle, booger, boogerman, boogeyman, bother, bouge, bristle, brown off, buff, bugaboo, bugbear, bugger, bulge, bullyrag, burn up, buttonhole, byte, cajole, carp at, case, catch, caterpillar, centipede, chafe, chilopod, chivy, cloud, coax, coccus, cock the ears, collector, command pulses, commands, compiler, computer code, computer language, computer program, confuse, control signals, controlled quantity, convulse, correcting signals, crack, crank, craze, crazy fancy, daddy longlegs, data, daze, dazzl